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.pr>div{background:white!important;color:#000!important}html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data .locmap div{background:transparent!important}}</style><div class="locmap noviewer noresize thumb tright"><div class="thumbinner" style="width:402px"><div style="position:relative;width:400px;border:1px solid lightgray"><a href="/wiki/File:United_Kingdom_England_adm_location_map.svg" class="mw-file-description" title="Map of Southern England showing the locations of the Device Forts"><img alt="Map of Southern England showing the locations of the Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/United_Kingdom_England_adm_location_map.svg/400px-United_Kingdom_England_adm_location_map.svg.png" decoding="async" width="400" height="486" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/11/United_Kingdom_England_adm_location_map.svg/600px-United_Kingdom_England_adm_location_map.svg.png 1.5x, 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Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:82.88%;left:62.2%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Calshot_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, 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src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:90.243%;left:29.518%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Devil%27s_Point_Artillery_Tower" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:69.086%;left:18.58%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/East_and_West_Blockhouses" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:83.735%;left:62.554%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/East_Cowes_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:72.56%;left:82.08%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/East_Tilbury_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:72.886%;left:81.403%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Gravesend_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:76.287%;left:93.166%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Great_Turf_Bulwark" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:76.603%;left:93.149%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Great_White_Bulwark_of_Clay" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:64.828%;left:91.852%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Harwich_blockhouses" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:72.761%;left:82.251%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Higham_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:36.106%;left:73.409%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Hull_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:84.697%;left:59.415%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Hurst_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:64.981%;left:92.238%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Langar_Point" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:64.641%;left:92.167%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Langar_Rode" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:93.695%;left:19.519%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Little_Dennis_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:76.387%;left:93.161%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Little_Turf_Bulwark" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:67.252%;left:88.611%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Mersea_Fort" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:72.904%;left:81.487%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Milton_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:81.963%;left:61.602%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Netley_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:93.664%;left:19.468%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Pendennis_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:86.908%;left:49.18%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Portland_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:82.377%;left:62.047%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/St_Andrew%27s_Castle,_Hamble" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:90.748%;left:24.064%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/St_Catherine%27s_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:84.703%;left:64.59%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/St_Helens_Bulwark" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:93.513%;left:19.468%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/St_Mawes_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:67.184%;left:88.797%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/St_Osyth_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:85.493%;left:64.035%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Sandown_Castle,_Isle_of_Wight" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:84.693%;left:59.755%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Sharpenrode_Bulwark" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:86.474%;left:49.017%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Sandsfoot_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:78.824%;left:90.272%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Sandgate_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:76.185%;left:93.168%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Sandown_Castle,_Kent" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:83.551%;left:64.699%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Southsea_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:76.703%;left:93.144%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/Walmer_Bulwark" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:76.791%;left:93.166%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Walmer_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:83.736%;left:62.273%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/West_Cowes_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:72.762%;left:81.412%;font-size:86%"><div class="id" style="left:-5px;top:-5px"><a href="/wiki/West_Tilbury_Blockhouse" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div><div class="od notheme" style="top:84.694%;left:59.998%;font-size:86%"><div class="id" style="left:-8px;top:-8px"><a href="/wiki/Yarmouth_Castle" title="List of Device Forts"><img alt="List of Device Forts" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a></div></div></div><div class="thumbcaption"><div class="magnify"><a href="/wiki/File:United_Kingdom_England_adm_location_map.svg" title="File:United Kingdom England adm location map.svg">class=notpageimage| </a></div><a href="/wiki/File:Blue_pog.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/15px-Blue_pog.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/23px-Blue_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Blue_pog.svg/30px-Blue_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a> Henrician castles <a href="/wiki/File:Steel_pog.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/10px-Steel_pog.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/15px-Steel_pog.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Steel_pog.svg/20px-Steel_pog.svg.png 2x" data-file-width="64" data-file-height="64" /></a> Henrician blockhouses and bulwarks<a href="#cite_note-1">[1]</a></div></div></div> The Device Forts, also known as Henrician castles and blockhouses, were a series of artillery fortifications built to defend the coast of England and Wales by <a href="/wiki/Henry_VIII_of_England" class="mw-redirect" title="Henry VIII of England">Henry VIII</a>.<a href="#cite_note-2">[2]</a><a href="#cite_note-4">[a]</a> They ranged from large stone <a href="/wiki/Castle" title="Castle">castles</a>, to small <a href="/wiki/Blockhouse" title="Blockhouse">blockhouses</a> and earthwork <a href="/wiki/Bastion" title="Bastion">bulwarks</a>.<a href="#cite_note-5">[4]</a> Armed with <a href="/wiki/List_of_medieval_and_early_modern_gunpowder_artillery" title="List of medieval and early modern gunpowder artillery">artillery</a>, the forts were intended to be used against enemy ships before they could land forces or attack vessels lying in harbour.<a href="#cite_note-6">[5]</a> The castles were commanded by captains appointed by <a href="/wiki/The_Crown" title="The Crown">the Crown</a>, overseeing small garrisons of professional gunners and soldiers, who would be supplemented by local militia in an emergency.<a href="#cite_note-7">[6]</a> The Device programme was hugely expensive, costing a total of £376,000, much of it raised from the proceeds of the <a href="/wiki/Dissolution_of_the_Monasteries" class="mw-redirect" title="Dissolution of the Monasteries">Dissolution of the Monasteries</a>.<a href="#cite_note-8">[7]</a><a href="#cite_note-Money19thC-10">[b]</a> The fate of the Device Forts over the coming years varied.<a href="#cite_note-11">[9]</a> Some of the defences were left to deteriorate and were decommissioned only a few years after their construction.<a href="#cite_note-12">[10]</a> Others were kept in service and used during the <a href="/wiki/English_Civil_War" title="English Civil War">English Civil War</a>, the <a href="/wiki/Anglo-Dutch_Wars" title="Anglo-Dutch Wars">Anglo-Dutch Wars</a>, the <a href="/wiki/Napoleonic_Wars" title="Napoleonic Wars">Napoleonic Wars</a> and, upgraded with more modern artillery and defences, throughout the 19th century.<a href="#cite_note-13">[11]</a> By 1900, however, developments in guns and armour had made most of the Device Forts that remained in service simply too small to be practical in modern coastal defence.<a href="#cite_note-14">[12]</a> Despite being brought back into use during the <a href="/wiki/Second_World_War" class="mw-redirect" title="Second World War">Second World War</a>, by the 1950s those fortifications still in use were considered redundant and finally decommissioned.<a href="#cite_note-15">[13]</a> <a href="/wiki/Coastal_erosion" title="Coastal erosion">Coastal erosion</a> over the centuries had extensively damaged or completely destroyed some sites, but others have been restored and opened to the public as tourist attractions.<a href="#cite_note-16">[14]</a> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Details">Details</h2>[<a href="/w/index.php?title=List_of_Device_Forts&action=edit&section=1" title="Edit section: Details">edit</a>]</div> <table class="wikitable" border="1"> <tbody><tr> <th>Name </th> <th>Image </th> <th>Plan </th> <th>Location </th> <th>Date </th> <th>Built to protect </th> <th>Open to the public </th> <th>Notes </th></tr> <tr> <td>Brightlingsea Blockhouse </td> <td><a href="/wiki/File:Colne_Estuary_-_geograph.org.uk_-_1181971.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/09/Colne_Estuary_-_geograph.org.uk_-_1181971.jpg/90px-Colne_Estuary_-_geograph.org.uk_-_1181971.jpg" decoding="async" width="90" height="64" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/09/Colne_Estuary_-_geograph.org.uk_-_1181971.jpg/135px-Colne_Estuary_-_geograph.org.uk_-_1181971.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/09/Colne_Estuary_-_geograph.org.uk_-_1181971.jpg/180px-Colne_Estuary_-_geograph.org.uk_-_1181971.jpg 2x" data-file-width="640" data-file-height="457" /></a> </td> <td> </td> <td><a href="/wiki/Brightlingsea" title="Brightlingsea">Brightlingsea</a> <style data-mw-deduplicate="TemplateStyles:r1156832818">.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}</style><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.805412_N_1.010532_E_type:landmark_region:GB&title=Brightlingsea+Blockhouse">51°48′19″N 1°00′38″E / 51.805412°N 1.010532°E / 51.805412; 1.010532 (Brightlingsea Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.804916_N_1.009778_E_region:GB_scale:25000">TM076161</a> </td> <td>1543 </td> <td><a href="/wiki/River_Colne,_Essex" title="River Colne, Essex">River Colne</a> </td> <td>N/A </td> <td>The blockhouse was an earthwork fort with a garrison of two officers and up to six men, which operated in partnership with St Osyth Blockhouse. It was decommissioned in 1552 and the site has since been lost, probably due to coastal erosion. </td></tr> <tr> <td><a href="/wiki/Brownsea_Castle" title="Brownsea Castle">Brownsea Castle</a> </td> <td><a href="/wiki/File:Brownsea_Castle_seen_from_sea.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Brownsea_Castle_seen_from_sea.jpg/90px-Brownsea_Castle_seen_from_sea.jpg" decoding="async" width="90" height="56" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Brownsea_Castle_seen_from_sea.jpg/135px-Brownsea_Castle_seen_from_sea.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Brownsea_Castle_seen_from_sea.jpg/180px-Brownsea_Castle_seen_from_sea.jpg 2x" data-file-width="4890" data-file-height="3053" /></a> </td> <td><a href="/wiki/File:Map_of_Brownsea_Castle.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Map_of_Brownsea_Castle.png/90px-Map_of_Brownsea_Castle.png" decoding="async" width="90" height="66" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Map_of_Brownsea_Castle.png/135px-Map_of_Brownsea_Castle.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/6e/Map_of_Brownsea_Castle.png/180px-Map_of_Brownsea_Castle.png 2x" data-file-width="1464" data-file-height="1077" /></a> </td> <td><a href="/wiki/Brownsea_Island" title="Brownsea Island">Brownsea Island</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.68834_N_1.95826_W_type:landmark_region:GB&title=Brownsea+Castle">50°41′18″N 1°57′30″W / 50.68834°N 1.95826°W / 50.68834; -1.95826 (Brownsea Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.688046_N_1.960310_W_region:GB_scale:25000">SZ029876</a> </td> <td>1545–47 </td> <td><a href="/wiki/Poole_Harbour" title="Poole Harbour">Poole Harbour</a> </td> <td>No </td> <td>The castle comprised a stone blockhouse with an adjacent, hexagonal gun platform, garrisoned by the local town with six soldiers and armed with eight artillery pieces. It was occupied by Parliament during the English Civil War, and was turned into a country house during the 18th century. It is now a corporate hotel for the <a href="/wiki/John_Lewis_Partnership" title="John Lewis Partnership">John Lewis Partnership</a>.<a href="#cite_note-17">[15]</a> </td></tr> <tr> <td><a href="/wiki/Calshot_Castle" title="Calshot Castle">Calshot Castle</a> </td> <td><a href="/wiki/File:Calshot_castle_evening.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Calshot_castle_evening.JPG/90px-Calshot_castle_evening.JPG" decoding="async" width="90" height="51" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Calshot_castle_evening.JPG/135px-Calshot_castle_evening.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Calshot_castle_evening.JPG/180px-Calshot_castle_evening.JPG 2x" data-file-width="5664" data-file-height="3208" /></a> </td> <td><a href="/wiki/File:Calshot_Castle_plan.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Calshot_Castle_plan.png/90px-Calshot_Castle_plan.png" decoding="async" width="90" height="93" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Calshot_Castle_plan.png/135px-Calshot_Castle_plan.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Calshot_Castle_plan.png/180px-Calshot_Castle_plan.png 2x" data-file-width="1162" data-file-height="1200" /></a> </td> <td><a href="/wiki/Calshot_Spit" title="Calshot Spit">Calshot Spit</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.82_N_1.3075_W_type:landmark_region:GB&title=Calshot+Castle">50°49′12″N 1°18′27″W / 50.82°N 1.3075°W / 50.82; -1.3075 (Calshot Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.819096_N_1.308617_W_region:GB_scale:25000">SU488024</a> </td> <td>1539–40 </td> <td><a href="/wiki/Southampton_Water" title="Southampton Water">Southampton Water</a> </td> <td>Yes </td> <td>The castle had a keep at its centre, surrounded by a curtain wall and a moat. Initially heavily armed, it had a garrison of 16 men and as many as 36 artillery guns. The castle became a base for seaplanes in 1913, and, as RAF Calshot, remained active until its closure in 1961. After a short period of use by the coastguard, the castle was opened to the public by English Heritage in the 1980s.<a href="#cite_note-18">[16]</a> </td></tr> <tr> <td><a href="/wiki/Camber_Castle" title="Camber Castle">Camber Castle</a> </td> <td><a href="/wiki/File:Camber_Castle,_seen_from_the_north-west.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Camber_Castle%2C_seen_from_the_north-west.jpg/90px-Camber_Castle%2C_seen_from_the_north-west.jpg" decoding="async" width="90" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/75/Camber_Castle%2C_seen_from_the_north-west.jpg/135px-Camber_Castle%2C_seen_from_the_north-west.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/75/Camber_Castle%2C_seen_from_the_north-west.jpg/180px-Camber_Castle%2C_seen_from_the_north-west.jpg 2x" data-file-width="640" data-file-height="275" /></a> </td> <td><a href="/wiki/File:Camber_Castle_plan_-_simplified.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Camber_Castle_plan_-_simplified.png/90px-Camber_Castle_plan_-_simplified.png" decoding="async" width="90" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/74/Camber_Castle_plan_-_simplified.png/135px-Camber_Castle_plan_-_simplified.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/74/Camber_Castle_plan_-_simplified.png/180px-Camber_Castle_plan_-_simplified.png 2x" data-file-width="972" data-file-height="963" /></a> </td> <td><a href="/wiki/Rye,_East_Sussex" title="Rye, East Sussex">Rye</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.93305_N_0.73248_E_type:landmark_region:GB&title=CamberCastle">50°55′59″N 0°43′57″E / 50.93305°N 0.73248°E / 50.93305; 0.73248 (CamberCastle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.933073_N_0.729639_E_region:GB_scale:25000">TQ919184</a> </td> <td>1513–43 </td> <td><a href="/wiki/Camber,_East_Sussex" title="Camber, East Sussex">Camber anchorage</a> </td> <td>Yes </td> <td>The castle was rebuilt on the site of a previous tower in 1539, and expanded further from 1542 to 1543. The result was a large, concentric fort, with a central keep, surrounded by five circular bastions, built from stone and brick. It may have seen service in 1545 when a French fleet attacked the coast. The coastline receded, eventually placing it well in-land and the castle was closed in 1637.<a href="#cite_note-19">[17]</a> </td></tr> <tr> <td><a href="/wiki/Deal_Castle" title="Deal Castle">Deal Castle</a> </td> <td><a href="/wiki/File:Deal_Castle.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/76/Deal_Castle.jpg/90px-Deal_Castle.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/76/Deal_Castle.jpg/135px-Deal_Castle.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/76/Deal_Castle.jpg/180px-Deal_Castle.jpg 2x" data-file-width="640" data-file-height="427" /></a> </td> <td><a href="/wiki/File:Deal_Castle_plan_unlabelled.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Deal_Castle_plan_unlabelled.jpg/90px-Deal_Castle_plan_unlabelled.jpg" decoding="async" width="90" height="90" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Deal_Castle_plan_unlabelled.jpg/135px-Deal_Castle_plan_unlabelled.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5e/Deal_Castle_plan_unlabelled.jpg/180px-Deal_Castle_plan_unlabelled.jpg 2x" data-file-width="4249" data-file-height="4249" /></a> </td> <td><a href="/wiki/Deal,_Kent" title="Deal, Kent">Deal</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.21854_N_1.4039_E_type:landmark_region:GB&title=Deal+Castle">51°13′07″N 1°24′14″E / 51.21854°N 1.4039°E / 51.21854; 1.4039 (Deal Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.218516_N_1.401043_E_region:GB_scale:25000">TR376521</a> </td> <td>1539-40 </td> <td><a href="/wiki/The_Downs_(ship_anchorage)" title="The Downs (ship anchorage)">The Downs</a> </td> <td>Yes </td> <td>The castle comprised a keep with six inner and outer bastions, and had sixty-six firing positions for artillery. During the Second English Civil War, it was seized by pro-Royalist insurgents and retaken by Parliamentary forces only after several months' fighting. Deal was adapted during the 18th and 19th centuries to form a private house for the castle's captain and was decommissioned in 1904. It was restored by the government during the 1950s as a tourist attraction.<a href="#cite_note-20">[18]</a> </td></tr> <tr> <td>Devil's Point Artillery Tower </td> <td><a href="/wiki/File:Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg/90px-Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg" decoding="async" width="90" height="120" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg/135px-Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg/180px-Rocky_foreshore_at_Devil%27s_Point_-_geograph.org.uk_-_917282.jpg 2x" data-file-width="480" data-file-height="640" /></a> </td> <td> </td> <td><a href="/wiki/Plymouth" title="Plymouth">Plymouth</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.3598_N_4.16719_W_type:landmark_region:GB&title=Devil%27s+Point+Artillery+Tower">50°21′35″N 4°10′02″W / 50.35980°N 4.16719°W / 50.35980; -4.16719 (Devil's Point Artillery Tower)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.359365_N_4.167797_W_region:GB_scale:25000">SX459533</a> </td> <td>1537–39 </td> <td><a href="/wiki/Plymouth" title="Plymouth">Plymouth Harbour</a> </td> <td>No </td> <td>The tower was built by the local Edgcumbe family, and comprised a one-storey, octagonal granite stone blockhouse, with six gunports overlooking the sea and the land.<a href="#cite_note-21">[19]</a> </td></tr> <tr> <td><a href="/wiki/East_and_West_Blockhouses" title="East and West Blockhouses">East Blockhouse</a> </td> <td><a href="/wiki/File:East_Blockhouse,_Angle.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/East_Blockhouse%2C_Angle.jpg/90px-East_Blockhouse%2C_Angle.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/East_Blockhouse%2C_Angle.jpg/135px-East_Blockhouse%2C_Angle.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/East_Blockhouse%2C_Angle.jpg/180px-East_Blockhouse%2C_Angle.jpg 2x" data-file-width="4320" data-file-height="3240" /></a> </td> <td> </td> <td><a href="/wiki/Angle,_Pembrokeshire" title="Angle, Pembrokeshire">Angle</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.68213_N_5.12424_W_type:landmark_region:GB&title=East+Blockhouse">51°40′56″N 5°07′27″W / 51.68213°N 5.12424°W / 51.68213; -5.12424 (East Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.681375_N_5.124460_W_region:GB_scale:25000">SM841027</a> </td> <td>1539 </td> <td><a href="/wiki/Milford_Haven_Waterway" title="Milford Haven Waterway">Milford Haven Waterway</a> </td> <td>Yes </td> <td>The blockhouse was never completed, although its remains were used as a defensive site in the Second World War. Some of the site has been lost due to coastal erosion.<a href="#cite_note-22">[20]</a> </td></tr> <tr> <td>East Cowes Castle </td> <td><a href="/wiki/File:Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg/90px-Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg/135px-Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg/180px-Old_Castle_Point_-_geograph.org.uk_-_1034280.jpg 2x" data-file-width="640" data-file-height="480" /></a> </td> <td> </td> <td><a href="/wiki/East_Cowes" title="East Cowes">East Cowes</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.76657_N_1.2765_W_type:landmark_region:GB&title=East+Cowes+Castle">50°46′00″N 1°16′35″W / 50.76657°N 1.2765°W / 50.76657; -1.2765 (East Cowes Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.765846_N_1.276788_W_region:GB_scale:25000">SZ511965</a> </td> <td>1539–42 </td> <td><a href="/wiki/Cowes" title="Cowes">Cowes Harbour</a> and the <a href="/wiki/River_Medina" title="River Medina">River Medina</a> </td> <td>N/A </td> <td>The castle probably comprised a circular bastion and a square tower. It was abandoned around 1546-47 and fell into ruin. Nothing survives of the site, which was probably finally destroyed by coastal erosion.<a href="#cite_note-23">[21]</a> </td></tr> <tr> <td><a href="/wiki/East_Tilbury_Blockhouse" class="mw-redirect" title="East Tilbury Blockhouse">East Tilbury Blockhouse</a> </td> <td><a href="/wiki/File:Coalhouse_Fort_seen_from_the_estuary.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/86/Coalhouse_Fort_seen_from_the_estuary.jpg/90px-Coalhouse_Fort_seen_from_the_estuary.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/86/Coalhouse_Fort_seen_from_the_estuary.jpg/135px-Coalhouse_Fort_seen_from_the_estuary.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/86/Coalhouse_Fort_seen_from_the_estuary.jpg/180px-Coalhouse_Fort_seen_from_the_estuary.jpg 2x" data-file-width="800" data-file-height="532" /></a> </td> <td> </td> <td><a href="/wiki/East_Tilbury" title="East Tilbury">East Tilbury</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.46502_N_0.4328_E_type:landmark_region:GB&title=East+Tilbury+Blockhouse">51°27′54″N 0°25′58″E / 51.46502°N 0.4328°E / 51.46502; 0.4328 (East Tilbury Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.458592_N_0.432650_E_region:GB_scale:25000">TQ691761</a> </td> <td>1539–41 </td> <td><a href="/wiki/River_Thames" title="River Thames">River Thames</a> </td> <td>N/A </td> <td>The blockhouse was probably D-shaped, with a circular bastion facing the river and additional battery positions on both sides of the main defences, built using stone and timber taken from St Margaret's Chantry. The guns were removed in 1553 and it had probably fallen out of use by 1588. <a href="/wiki/Coalhouse_Fort" title="Coalhouse Fort">Coalhouse Fort</a> was later built just inshore from the blockhouse, which may still survive under the Thames mud.<a href="#cite_note-24">[22]</a> </td></tr> <tr> <td><a href="/wiki/Gravesend_Blockhouse" title="Gravesend Blockhouse">Gravesend Blockhouse</a> </td> <td><a href="/wiki/File:Remains_of_Gravesend_Blockhouse.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Remains_of_Gravesend_Blockhouse.jpg/90px-Remains_of_Gravesend_Blockhouse.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Remains_of_Gravesend_Blockhouse.jpg/135px-Remains_of_Gravesend_Blockhouse.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Remains_of_Gravesend_Blockhouse.jpg/180px-Remains_of_Gravesend_Blockhouse.jpg 2x" data-file-width="4928" data-file-height="3264" /></a> </td> <td><a href="/wiki/File:Device_fort_plans_black_and_white_Gravesend,_Kent.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Device_fort_plans_black_and_white_Gravesend%2C_Kent.png/90px-Device_fort_plans_black_and_white_Gravesend%2C_Kent.png" decoding="async" width="90" height="72" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Device_fort_plans_black_and_white_Gravesend%2C_Kent.png/135px-Device_fort_plans_black_and_white_Gravesend%2C_Kent.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Device_fort_plans_black_and_white_Gravesend%2C_Kent.png/180px-Device_fort_plans_black_and_white_Gravesend%2C_Kent.png 2x" data-file-width="2500" data-file-height="2000" /></a> </td> <td><a href="/wiki/Gravesend" title="Gravesend">Gravesend</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.44463_N_0.37277_E_type:landmark_region:GB&title=Gravesend+Blockhouse">51°26′41″N 0°22′22″E / 51.44463°N 0.37277°E / 51.44463; 0.37277 (Gravesend Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.444560_N_0.371459_E_region:GB_scale:25000">TQ649744</a> </td> <td>1539 </td> <td>River Thames </td> <td>No </td> <td>The blockhouse was probably D-shaped, two storeys tall, with a circular bastion facing the river. There were lines of gun positions on both sides of the main defences. It was repaired in 1588 and 1667 due to the threat of Spanish and Dutch attack. The blockhouse was demolished in 1844.<a href="#cite_note-25">[23]</a> </td></tr> <tr> <td>Great Turf Bulwark </td> <td> </td> <td> </td> <td><a href="/wiki/Deal,_Kent" title="Deal, Kent">Deal</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.232089_N_1.4020357_E_type:landmark_region:GB&title=Great+Turf+Bulwark">51°13′56″N 1°24′07″E / 51.232089°N 1.4020357°E / 51.232089; 1.4020357 (Great Turf Bulwark)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.231980_N_1.402036_E_region:GB_scale:25000">TR376536</a><a href="#cite_note-26">[24]</a> </td> <td>1540 </td> <td>The Downs </td> <td>N/A </td> <td>The bulwark comprised an earthwork defence, forming part of a chain between Sandown and Walmer Castle, linked by a trench or a covered way. It was designed by Stephen Haschenperg. By 1547, the bulwark was defaced and the guns had been removed; it was formally removed from service in 1550. The site has since been lost.<a href="#cite_note-27">[25]</a> </td></tr> <tr> <td>Great White Bulwark of Clay </td> <td> </td> <td> </td> <td><a href="/wiki/Deal,_Kent" title="Deal, Kent">Deal</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.212342_N_1.4005788_E_type:landmark_region:GB&title=Great+White+Bulwark+of+Clay">51°12′44″N 1°24′02″E / 51.212342°N 1.4005788°E / 51.212342; 1.4005788 (Great White Bulwark of Clay)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.212233_N_1.400579_E_region:GB_scale:25000">TR376514</a><a href="#cite_note-28">[26]</a> </td> <td>1540 </td> <td>The Downs </td> <td>N/A </td> <td>The bulwark comprised an earthwork defence, forming part of a chain between Sandown and Walmer Castle, linked by a trench or a covered way. It was designed by Stephen Haschenperg. By 1547, the bulwark was defaced and the guns had been removed; it was formally removed from service in 1550. The site has since been lost.<a href="#cite_note-29">[27]</a> </td></tr> <tr> <td>Harwich blockhouses </td> <td> </td> <td> </td> <td>Harwich <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.94822_N_1.28707_E_type:landmark_region:GB&title=Tower+House">51°56′54″N 1°17′13″E / 51.94822°N 1.28707°E / 51.94822; 1.28707 (Tower House)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.947702_N_1.285683_E_region:GB_scale:25000">TM259328</a> </td> <td>1543 </td> <td><a href="/wiki/Harwich" title="Harwich">Harwich</a> </td> <td>N/A </td> <td>Three blockhouses were constructed, Tower House, Middle House and the House-upon-the-Hill, each with garrisons of two officers and between six and nine men. They were decommissioned in 1552, and, by 1588, two had been pulled down by a local citizen. The site of House-upon-the-Hill has since been lost to coastal erosion.<a href="#cite_note-30">[28]</a> </td></tr> <tr> <td>Higham Blockhouse </td> <td> </td> <td> </td> <td><a href="/wiki/Higham,_Kent" title="Higham, Kent">Higham</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.45243_N_0.44695_E_type:landmark_region:GB&title=Higham+Blockhouse">51°27′09″N 0°26′49″E / 51.45243°N 0.44695°E / 51.45243; 0.44695 (Higham Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.452004_N_0.446694_E_region:GB_scale:25000">TQ701754</a> </td> <td>1539 </td> <td>River Thames </td> <td>N/A </td> <td>The blockhouse was probably D-shaped, with a circular bastion facing the river. There were probably additional battery positions on both sides of the main defences. In 1553, orders were issued for its guns to be removed; it was then demolished between 1557 and 1558.<a href="#cite_note-31">[29]</a> </td></tr> <tr> <td><a href="/wiki/Hull_Castle" title="Hull Castle">Hull Castle and blockhouses</a> </td> <td><a href="/wiki/File:Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg/90px-Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg" decoding="async" width="90" height="48" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg/135px-Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg/180px-Wenceslas_Hollar_-_Hull_defences_-_closeup.jpg 2x" data-file-width="1600" data-file-height="846" /></a> </td> <td><a href="/wiki/File:Hull_Castle_-_plan.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/41/Hull_Castle_-_plan.png/90px-Hull_Castle_-_plan.png" decoding="async" width="90" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/41/Hull_Castle_-_plan.png/135px-Hull_Castle_-_plan.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/41/Hull_Castle_-_plan.png/180px-Hull_Castle_-_plan.png 2x" data-file-width="1500" data-file-height="1122" /></a> </td> <td><a href="/wiki/Kingston_upon_Hull" title="Kingston upon Hull">Kingston upon Hull</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=53.74339_N_0.326679_W_type:landmark_region:GB&title=Hull+Castle">53°44′36″N 0°19′36″W / 53.74339°N 0.326679°W / 53.74339; -0.326679 (Hull Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=53.743013_N_0.329044_W_region:GB_scale:25000">TA103287</a> </td> <td>1543 </td> <td><a href="/wiki/Kingston_upon_Hull" title="Kingston upon Hull">Kingston upon Hull</a> </td> <td>N/A </td> <td>The castle comprised two large, curved bastions, with a rectangular keep at its centre; the blockhouses to its north and south had three curved bastions supporting guns, and a curtain wall and moat linked the blockhouses and castle. The town took over responsibility for these defences in 1553, which were used to imprison <a href="/wiki/Catholic" class="mw-redirect" title="Catholic">Catholic</a> <a href="/wiki/Recusant" class="mw-redirect" title="Recusant">recusants</a>, and saw military service during the English Civil War. The buildings were incorporated into a larger fortification called <a href="/wiki/Hull_Citadel" class="mw-redirect" title="Hull Citadel">the Citadel</a> in the 1680s and were demolished with it in 1864.<a href="#cite_note-32">[30]</a> </td></tr> <tr> <td><a href="/wiki/Hurst_Castle" title="Hurst Castle">Hurst Castle</a> </td> <td><a href="/wiki/File:Hurst_Castle,_near_Milford_on_Sea,_Hampshire,_England-2Oct2010_trimmmed.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Hurst_Castle%2C_near_Milford_on_Sea%2C_Hampshire%2C_England-2Oct2010_trimmmed.jpg/90px-Hurst_Castle%2C_near_Milford_on_Sea%2C_Hampshire%2C_England-2Oct2010_trimmmed.jpg" decoding="async" width="90" height="46" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Hurst_Castle%2C_near_Milford_on_Sea%2C_Hampshire%2C_England-2Oct2010_trimmmed.jpg/135px-Hurst_Castle%2C_near_Milford_on_Sea%2C_Hampshire%2C_England-2Oct2010_trimmmed.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e0/Hurst_Castle%2C_near_Milford_on_Sea%2C_Hampshire%2C_England-2Oct2010_trimmmed.jpg/180px-Hurst_Castle%2C_near_Milford_on_Sea%2C_Hampshire%2C_England-2Oct2010_trimmmed.jpg 2x" data-file-width="1651" data-file-height="838" /></a> </td> <td><a href="/wiki/File:Hurst_Caslte_keep_16th_century_unlabelled.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Hurst_Caslte_keep_16th_century_unlabelled.png/90px-Hurst_Caslte_keep_16th_century_unlabelled.png" decoding="async" width="90" height="85" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Hurst_Caslte_keep_16th_century_unlabelled.png/135px-Hurst_Caslte_keep_16th_century_unlabelled.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Hurst_Caslte_keep_16th_century_unlabelled.png/180px-Hurst_Caslte_keep_16th_century_unlabelled.png 2x" data-file-width="1004" data-file-height="952" /></a> </td> <td><a href="/wiki/Hurst_Spit" title="Hurst Spit">Hurst Spit</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.70644_N_1.55117_W_type:landmark_region:GB&title=Hurst+Castle">50°42′23″N 1°33′04″W / 50.70644°N 1.55117°W / 50.70644; -1.55117 (Hurst Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.706074_N_1.551027_W_region:GB_scale:25000">SZ318897</a> </td> <td>1541–44 </td> <td><a href="/wiki/The_Solent" title="The Solent">The Solent</a> </td> <td>Yes </td> <td>The castle had a central keep, surrounded by three circular bastions, and was one of the most powerful forts along the coast. It was modernised to hold heavier guns at the start of the 19th century and during the 1850s. Two long wings for massive <a href="/wiki/RML_12.5_inch_38_ton_gun" class="mw-redirect" title="RML 12.5 inch 38 ton gun">12.5 inch, 38 ton</a> (317 mm, 39,000 kg) <a href="/wiki/Rifled_muzzle-loading" class="mw-redirect" title="Rifled muzzle-loading">rifled muzzle-loading</a> guns were added in the 1860s. It was decommissioned in 1956, and is now owned by English Heritage.<a href="#cite_note-33">[31]</a> </td></tr> <tr> <td>Langar Point </td> <td> </td> <td> </td> <td><a href="/wiki/Felixstowe" title="Felixstowe">Felixstowe</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.93867_N_1.32083_E_type:landmark_region:GB&title=Langar+Point">51°56′19″N 1°19′15″E / 51.93867°N 1.32083°E / 51.93867; 1.32083 (Langar Point)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.937703_N_1.321332_E_region:GB_scale:25000">TM284318</a> </td> <td>1540 </td> <td>Harwich </td> <td>N/A </td> <td>An earthwork fort with a garrison of two officers and up to six men, positioned on the shore. Plans were made for a replacement stone blockhouse, similar to Southsea Castle, in 1543 but the work was not carried out. It was decommissioned in 1552. Further plans were made for a bulwark at the site in 1588, but it is unclear what work, if any, was carried out. Landguard Fort was later built on the point.<a href="#cite_note-34">[32]</a> </td></tr> <tr> <td>Langar Rode </td> <td> </td> <td> </td> <td><a href="/wiki/Felixstowe" title="Felixstowe">Felixstowe</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.95992_N_1.31458_E_type:landmark_region:GB&title=Langar+Rode">51°57′36″N 1°18′52″E / 51.95992°N 1.31458°E / 51.95992; 1.31458 (Langar Rode)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.957778_N_1.311170_E_region:GB_scale:25000">TM276340</a> </td> <td>1543 </td> <td>Harwich </td> <td>N/A </td> <td>An earthwork fort with a garrison of two officers and up to six men, positioned on higher ground. It was decommissioned in 1552.<a href="#cite_note-35">[33]</a> </td></tr> <tr> <td><a href="/wiki/Little_Dennis_Blockhouse" class="mw-redirect" title="Little Dennis Blockhouse">Little Dennis Blockhouse</a> </td> <td><a href="/wiki/File:Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg/90px-Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg/135px-Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b8/Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg/180px-Little_Dennis_Blockhouse_on_Pendennis_Point_-_geograph.org.uk_-_826732.jpg 2x" data-file-width="640" data-file-height="480" /></a> </td> <td><a href="/wiki/File:Little_Dennis_Blockhouse_plan.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Little_Dennis_Blockhouse_plan.png/90px-Little_Dennis_Blockhouse_plan.png" decoding="async" width="90" height="86" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/93/Little_Dennis_Blockhouse_plan.png/135px-Little_Dennis_Blockhouse_plan.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/93/Little_Dennis_Blockhouse_plan.png/180px-Little_Dennis_Blockhouse_plan.png 2x" data-file-width="1200" data-file-height="1146" /></a> </td> <td><a href="/wiki/Falmouth,_Cornwall" title="Falmouth, Cornwall">Falmouth</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.14407_N_5.0421_W_type:landmark_region:GB&title=Little+Dennis+Blockhouse">50°08′39″N 5°02′32″W / 50.14407°N 5.04210°W / 50.14407; -5.04210 (Little Dennis Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.143592_N_5.042658_W_region:GB_scale:25000">SW827315</a> </td> <td>1540-45 </td> <td><a href="/wiki/Carrick_Roads" title="Carrick Roads">Carrick Roads</a> </td> <td>Yes </td> <td>The blockhouse was built as part of the wider defences of Pendennis Castle, comprising a stone, D-shaped building. It was decommissioned in 1654.<a href="#cite_note-36">[34]</a> </td></tr> <tr> <td>Little Turf Bulwark </td> <td> </td> <td> </td> <td>Deal <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.225806_N_1.401572_E_type:landmark_region:GB&title=Little+Turf+Bulwark">51°13′33″N 1°24′06″E / 51.225806°N 1.4015720°E / 51.225806; 1.4015720 (Little Turf Bulwark)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.225697_N_1.401572_E_region:GB_scale:25000">TR376529</a><a href="#cite_note-37">[35]</a> </td> <td>1540 </td> <td>The Downs </td> <td>N/A </td> <td>The bulwark comprised an earthwork defence, forming part of a chain between Sandown and Walmer Castle, linked by a trench or a covered way. It was designed by Stephen Haschenperg. By 1547, the bulwark was defaced and the guns had been removed; it was formally removed from service in 1550. The site has since been lost.<a href="#cite_note-38">[36]</a> </td></tr> <tr> <td><a href="/wiki/Mersea_Fort" title="Mersea Fort">Mersea Fort</a> </td> <td> </td> <td><a href="/wiki/File:Fort_Mersea_plan.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Fort_Mersea_plan.jpg/90px-Fort_Mersea_plan.jpg" decoding="async" width="90" height="83" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Fort_Mersea_plan.jpg/135px-Fort_Mersea_plan.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Fort_Mersea_plan.jpg/180px-Fort_Mersea_plan.jpg 2x" data-file-width="583" data-file-height="539" /></a> </td> <td><a href="/wiki/Mersea_Island" title="Mersea Island">Mersea Island</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.79674_N_1.00343_E_type:landmark_region:GB&title=Mersea+Fort">51°47′48″N 1°00′12″E / 51.79674°N 1.00343°E / 51.79674; 1.00343 (Mersea Fort)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.796123_N_1.001940_E_region:GB_scale:25000">TM071151</a> </td> <td>1543 </td> <td><a href="/wiki/River_Colne,_Essex" title="River Colne, Essex">River Colne</a> </td> <td>Yes </td> <td>The fort was triangular in shape, with earthwork walls and three bastions to hold artillery. It was demobilised in 1552, but was brought back into use several times over the next century, including during the <a href="/wiki/Second_English_Civil_War" title="Second English Civil War">Second English Civil War</a> of 1648. The fort hosted an <a href="/wiki/Admiralty_court" title="Admiralty court">admiralty court</a> to oversea the local oyster trade, but fell into decline and was extensively damaged by coastal erosion and the construction of a sea wall.<a href="#cite_note-39">[37]</a> </td></tr> <tr> <td><a href="/wiki/Milton_Blockhouse" title="Milton Blockhouse">Milton Blockhouse</a> </td> <td> </td> <td> </td> <td><a href="/wiki/Milton-next-Gravesend" title="Milton-next-Gravesend">Milton-next-Gravesend</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.44348_N_0.38008_E_type:landmark_region:GB&title=Milton+Blockhouse">51°26′37″N 0°22′48″E / 51.44348°N 0.38008°E / 51.44348; 0.38008 (Milton Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.442588_N_0.379992_E_region:GB_scale:25000">TQ655742</a> </td> <td>1539 </td> <td>River Thames </td> <td>N/A </td> <td>The blockhouse was probably D-shaped, two storeys tall, with a circular bastion facing the river. There were probably additional battery positions on both sides of the main defences. In 1553, orders were issued for its guns to be removed; it was then demolished between 1557 and 1558.<a href="#cite_note-40">[38]</a> </td></tr> <tr> <td><a href="/wiki/Netley_Castle" title="Netley Castle">Netley Castle</a> </td> <td><a href="/wiki/File:Netley_Castle_1.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Netley_Castle_1.jpg/90px-Netley_Castle_1.jpg" decoding="async" width="90" height="75" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/Netley_Castle_1.jpg/135px-Netley_Castle_1.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/Netley_Castle_1.jpg/180px-Netley_Castle_1.jpg 2x" data-file-width="2070" data-file-height="1734" /></a> </td> <td><a href="/wiki/File:Plan_of_Netley_Castle.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Plan_of_Netley_Castle.png/90px-Plan_of_Netley_Castle.png" decoding="async" width="90" height="33" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Plan_of_Netley_Castle.png/135px-Plan_of_Netley_Castle.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Plan_of_Netley_Castle.png/180px-Plan_of_Netley_Castle.png 2x" data-file-width="868" data-file-height="315" /></a> </td> <td><a href="/wiki/Netley" title="Netley">Netley</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.87732_N_1.35981_W_type:landmark_region:GB&title=Netley+Castle">50°52′38″N 1°21′35″W / 50.87732°N 1.35981°W / 50.87732; -1.35981 (Netley Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.876944_N_1.360351_W_region:GB_scale:25000">SU451088</a> </td> <td>1542–45 </td> <td>Southampton Water </td> <td>No </td> <td>The castle had a central, stone keep with two flanking gun platforms and was garrisoned by ten men. It was decommissioned during the English Civil War, but in the 19th century it was renovated to form a private house. It was used as a nursing home between 1939 and 1998, before being converted into residential flats.<a href="#cite_note-41">[39]</a> </td></tr> <tr> <td><a href="/wiki/Pendennis_Castle" title="Pendennis Castle">Pendennis Castle</a> </td> <td><a href="/wiki/File:Pendennis_Castle_keep.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Pendennis_Castle_keep.jpg/90px-Pendennis_Castle_keep.jpg" decoding="async" width="90" height="55" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Pendennis_Castle_keep.jpg/135px-Pendennis_Castle_keep.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/Pendennis_Castle_keep.jpg/180px-Pendennis_Castle_keep.jpg 2x" data-file-width="2899" data-file-height="1779" /></a> </td> <td><a href="/wiki/File:Pendennis_keep_unlabelled.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Pendennis_keep_unlabelled.jpg/90px-Pendennis_keep_unlabelled.jpg" decoding="async" width="90" height="73" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Pendennis_keep_unlabelled.jpg/135px-Pendennis_keep_unlabelled.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Pendennis_keep_unlabelled.jpg/180px-Pendennis_keep_unlabelled.jpg 2x" data-file-width="1330" data-file-height="1085" /></a> </td> <td><a href="/wiki/Falmouth,_Cornwall" title="Falmouth, Cornwall">Falmouth</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.14609_N_5.04659_W_type:landmark_region:GB&title=Pendennis+Castle">50°08′46″N 5°02′48″W / 50.14609°N 5.04659°W / 50.14609; -5.04659 (Pendennis Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.145278_N_5.046965_W_region:GB_scale:25000">SW824317</a> </td> <td>1540–5 </td> <td>Carrick Roads </td> <td>Yes </td> <td>The castle had a circular keep and gun platform, which was expanded at the end of the 16th century with a ring of extensive ramparts and bastions. Pendennis saw service during the English Civil War and was besieged in 1646. It was modernised and upgraded in the 1730s and again during the 1790s, and was used during both world wars. It was decommissioned in 1956 and is now managed by English Heritage as a tourist attraction, receiving 74,230 visitors in 2011-12.<a href="#cite_note-42">[40]</a> </td></tr> <tr> <td><a href="/wiki/Portland_Castle" title="Portland Castle">Portland Castle</a> </td> <td><a href="/wiki/File:Portland_castle_closeup.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Portland_castle_closeup.jpg/90px-Portland_castle_closeup.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Portland_castle_closeup.jpg/135px-Portland_castle_closeup.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Portland_castle_closeup.jpg/180px-Portland_castle_closeup.jpg 2x" data-file-width="2592" data-file-height="1944" /></a> </td> <td><a href="/wiki/File:Portland_Castle_plan_-_unlabelled.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Portland_Castle_plan_-_unlabelled.png/90px-Portland_Castle_plan_-_unlabelled.png" decoding="async" width="90" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Portland_Castle_plan_-_unlabelled.png/135px-Portland_Castle_plan_-_unlabelled.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Portland_Castle_plan_-_unlabelled.png/180px-Portland_Castle_plan_-_unlabelled.png 2x" data-file-width="1930" data-file-height="1445" /></a> </td> <td><a href="/wiki/Isle_of_Portland" title="Isle of Portland">Portland</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.56823_N_2.44678_W_type:landmark_region:GB&title=Portland+Castle">50°34′06″N 2°26′48″W / 50.56823°N 2.44678°W / 50.56823; -2.44678 (Portland Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.567587_N_2.447549_W_region:GB_scale:25000">SY684743</a> </td> <td>1539–40 </td> <td><a href="/wiki/Portland_Roads" class="mw-redirect" title="Portland Roads">Portland Roads</a> </td> <td>Yes </td> <td>The fan-shaped castle comprises a curved central tower and a gun battery, flanked by two angular wings. During the English Civil War, it survived two sieges before finally surrendering to Parliament in 1646. It continued in use as a fort until the end of the Napoleonic Wars in 1815, when it was disarmed, being variously used as a private house, military accommodation and storage until being opened to the public in 1955.<a href="#cite_note-43">[41]</a> </td></tr> <tr> <td><a href="/wiki/St_Andrew%27s_Castle,_Hamble" title="St Andrew's Castle, Hamble">St Andrew's Castle</a> </td> <td><a href="/wiki/File:St_Andrew%27s_Castle,_Hamble.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/St_Andrew%27s_Castle%2C_Hamble.jpg/90px-St_Andrew%27s_Castle%2C_Hamble.jpg" decoding="async" width="90" height="100" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b7/St_Andrew%27s_Castle%2C_Hamble.jpg/135px-St_Andrew%27s_Castle%2C_Hamble.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b7/St_Andrew%27s_Castle%2C_Hamble.jpg/180px-St_Andrew%27s_Castle%2C_Hamble.jpg 2x" data-file-width="1520" data-file-height="1695" /></a> </td> <td> </td> <td><a href="/wiki/Hamble-le-Rice" title="Hamble-le-Rice">Hamble-le-Rice</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.85145_N_1.32091_W_type:landmark_region:GB&title=St+Andrew%27s+Castle">50°51′05″N 1°19′15″W / 50.85145°N 1.32091°W / 50.85145; -1.32091 (St Andrew's Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.850643_N_1.320936_W_region:GB_scale:25000">SU479059</a> </td> <td>1543–44 </td> <td>Southampton Water </td> <td>Yes </td> <td>The castle comprised a keep with a circular bastion, surrounded by a moat. A survey of 1559 showed it to be heavily armed. In the English Civil War it was occupied by Parliamentary forces who decommissioned it; most of the castle has been destroyed by the sea and only a few parts of the stonework survive.<a href="#cite_note-44">[42]</a> </td></tr> <tr> <td><a href="/wiki/St_Catherine%27s_Castle" title="St Catherine's Castle">St Catherine's Castle</a> </td> <td><a href="/wiki/File:Stcatherinescastle.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Stcatherinescastle.jpg/90px-Stcatherinescastle.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/24/Stcatherinescastle.jpg/135px-Stcatherinescastle.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/24/Stcatherinescastle.jpg/180px-Stcatherinescastle.jpg 2x" data-file-width="2240" data-file-height="1488" /></a> </td> <td> </td> <td><a href="/wiki/Fowey" title="Fowey">Fowey</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.32822_N_4.64444_W_type:landmark_region:GB&title=SX1180451000">50°19′42″N 4°38′40″W / 50.32822°N 4.64444°W / 50.32822; -4.64444 (SX1180451000)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.328761_N_4.645555_W_region:GB_scale:25000">SX118510</a> </td> <td>Circa 1538–40 </td> <td><a href="/wiki/Fowey" title="Fowey">Fowey Harbour</a> </td> <td>Yes </td> <td>The castle comprised a two-storey, D-shaped blockhouse, and was built, and possibly partly paid for, by <a href="/wiki/Thomas_Treffry_I" class="mw-redirect" title="Thomas Treffry I">Thomas Treffry</a>, a member of the local gentry. It was decommissioned in 1815, brought back into service in 1855, decommissioned again and finally served as a naval battery in the Second World War.<a href="#cite_note-45">[43]</a> </td></tr> <tr> <td>St Helens Bulwark </td> <td> </td> <td> </td> <td><a href="/wiki/Isle_of_Wight" title="Isle of Wight">Isle of Wight</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.70604_N_1.09834_W_type:landmark_region:GB&title=St+Helens+Bulwark">50°42′22″N 1°05′54″W / 50.70604°N 1.09834°W / 50.70604; -1.09834 (St Helens Bulwark)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.705258_N_1.099285_W_region:GB_scale:25000">SZ637899</a> </td> <td>Circa 1539–45 </td> <td>St Helens anchorage </td> <td>N/A </td> <td>The fort may have been captured by the French during their raid of 1545. There is no mention of it after 1660; a coastal artillery battery was built on top of the site in the 19th century and no trace now remains.<a href="#cite_note-46">[44]</a> </td></tr> <tr> <td><a href="/wiki/St_Mawes_Castle" title="St Mawes Castle">St Mawes Castle</a> </td> <td><a href="/wiki/File:St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg/90px-St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c1/St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg/135px-St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c1/St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg/180px-St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg 2x" data-file-width="640" data-file-height="480" /></a> </td> <td><a href="/wiki/File:St_Mawes_Castle_plan.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/2c/St_Mawes_Castle_plan.jpg/90px-St_Mawes_Castle_plan.jpg" decoding="async" width="90" height="94" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/2c/St_Mawes_Castle_plan.jpg/135px-St_Mawes_Castle_plan.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/2c/St_Mawes_Castle_plan.jpg/180px-St_Mawes_Castle_plan.jpg 2x" data-file-width="1283" data-file-height="1335" /></a> </td> <td><a href="/wiki/Falmouth,_Cornwall" title="Falmouth, Cornwall">Falmouth</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.15544_N_5.02371_W_type:landmark_region:GB&title=St+Mawes+Castle">50°09′20″N 5°01′25″W / 50.15544°N 5.02371°W / 50.15544; -5.02371 (St Mawes Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.154882_N_5.023773_W_region:GB_scale:25000">SW841327</a> </td> <td>1540-42 </td> <td>Carrick Roads </td> <td>Yes </td> <td>The castle comprised a four-storey central tower and three, protruding round bastions, operating in conjunction with Pendennis Castle. It was taken in the English Civil War by a Parliamentary army without a fight, but remained in use through the 18th and 19th centuries, being updated for modern weaponry. Disarmed in the early 20th century, it was briefly brought back into use during the Second World War.<a href="#cite_note-47">[45]</a> </td></tr> <tr> <td>St Osyth Blockhouse </td> <td><a href="/wiki/File:Nature_Reserve_-_geograph.org.uk_-_756736.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Nature_Reserve_-_geograph.org.uk_-_756736.jpg/90px-Nature_Reserve_-_geograph.org.uk_-_756736.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Nature_Reserve_-_geograph.org.uk_-_756736.jpg/135px-Nature_Reserve_-_geograph.org.uk_-_756736.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a2/Nature_Reserve_-_geograph.org.uk_-_756736.jpg/180px-Nature_Reserve_-_geograph.org.uk_-_756736.jpg 2x" data-file-width="640" data-file-height="427" /></a> </td> <td> </td> <td><a href="/wiki/St_Osyth" title="St Osyth">St Osyth</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.80101_N_1.01971_E_type:landmark_region:GB&title=St+Osyth+Blockhouse">51°48′04″N 1°01′11″E / 51.80101°N 1.01971°E / 51.80101; 1.01971 (St Osyth Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.800165_N_1.019616_E_region:GB_scale:25000">TM083156</a> </td> <td>1543 </td> <td>River Colne </td> <td>N/A </td> <td>The blockhouse was an earthwork fort with a garrison of two officers and up to six men, which operated in conjunction with Brightlingsea Blockhouse. It was decommissioned in 1552; a 19th-century Martello Tower may have been built over the site. </td></tr> <tr> <td><a href="/wiki/Sandown_Castle,_Isle_of_Wight" title="Sandown Castle, Isle of Wight">Sandown Castle</a> </td> <td> </td> <td><a href="/wiki/File:Sandown_castle_plan_1559.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Sandown_castle_plan_1559.jpg/90px-Sandown_castle_plan_1559.jpg" decoding="async" width="90" height="118" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Sandown_castle_plan_1559.jpg/135px-Sandown_castle_plan_1559.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e8/Sandown_castle_plan_1559.jpg/180px-Sandown_castle_plan_1559.jpg 2x" data-file-width="380" data-file-height="500" /></a> </td> <td><a href="/wiki/Sandown" title="Sandown">Sandown</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.65669_N_1.14691_W_type:landmark_region:GB&title=Sandown+Castle">50°39′24″N 1°08′49″W / 50.65669°N 1.14691°W / 50.65669; -1.14691 (Sandown Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.657943_N_1.145462_W_region:GB_scale:25000">SZ605846</a> </td> <td>1545 </td> <td>The Solent </td> <td>N/A </td> <td>The castle was constructed from stone with angular bastions. Its design was a hybrid of Italian and English military designs. The site was raided by a French force while the fortification was still being constructed. The castle suffered from coastal erosion and was demolished in 1631.<a href="#cite_note-48">[46]</a> </td></tr> <tr> <td>Sharpenrode Bulwark </td> <td><a href="/wiki/File:Fort_Victoria_Panorama.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Fort_Victoria_Panorama.jpg/90px-Fort_Victoria_Panorama.jpg" decoding="async" width="90" height="26" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Fort_Victoria_Panorama.jpg/135px-Fort_Victoria_Panorama.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/7a/Fort_Victoria_Panorama.jpg/180px-Fort_Victoria_Panorama.jpg 2x" data-file-width="3000" data-file-height="883" /></a> </td> <td> </td> <td><a href="/wiki/Freshwater,_Isle_of_Wight" title="Freshwater, Isle of Wight">Freshwater</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.70669_N_1.52145_W_type:landmark_region:GB&title=Sharpenrode+Bulwark">50°42′24″N 1°31′17″W / 50.70669°N 1.52145°W / 50.70669; -1.52145 (Sharpenrode Bulwark)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.706855_N_1.521280_W_region:GB_scale:25000">SZ339898</a> </td> <td>1545–47 </td> <td><a href="/wiki/The_Needles" title="The Needles">The Needles Passage</a> </td> <td>N/A </td> <td>The earthen fort comprised a square blockhouse with two angular bastions. Its design expressed some early Italianate concepts. It was extensively rebuilt in 1587, and in the 1850s <a href="/wiki/Fort_Victoria_(Isle_of_Wight)" class="mw-redirect" title="Fort Victoria (Isle of Wight)">Fort Victoria</a> was constructed over the site.<a href="#cite_note-49">[47]</a> </td></tr> <tr> <td><a href="/wiki/Sandsfoot_Castle" title="Sandsfoot Castle">Sandsfoot Castle</a> </td> <td><a href="/wiki/File:Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg/90px-Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg" decoding="async" width="90" height="59" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg/135px-Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg/180px-Sandsfoot_Castle_-_geograph.org.uk_-_29088.jpg 2x" data-file-width="640" data-file-height="420" /></a> </td> <td><a href="/wiki/File:Sandsfoot_Castle_plan_-_unlabelled.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Sandsfoot_Castle_plan_-_unlabelled.png/90px-Sandsfoot_Castle_plan_-_unlabelled.png" decoding="async" width="90" height="50" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Sandsfoot_Castle_plan_-_unlabelled.png/135px-Sandsfoot_Castle_plan_-_unlabelled.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b4/Sandsfoot_Castle_plan_-_unlabelled.png/180px-Sandsfoot_Castle_plan_-_unlabelled.png 2x" data-file-width="1789" data-file-height="984" /></a> </td> <td><a href="/wiki/Weymouth_Bay" title="Weymouth Bay">Weymouth</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.59535_N_2.46099_W_type:landmark_region:GB&title=Sandsfoot+Castle">50°35′43″N 2°27′40″W / 50.59535°N 2.46099°W / 50.59535; -2.46099 (Sandsfoot Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.594510_N_2.461933_W_region:GB_scale:25000">SY674773</a> </td> <td>Completed by 1541 </td> <td><a href="/wiki/Weymouth_Bay" title="Weymouth Bay">Weymouth Bay</a> </td> <td>Yes </td> <td>The castle comprised a blockhouse attached to an octagonal gun room, overlooking the sea; further earthwork defences were added, probably in 1623. It changed hands several times during the English Civil War, and was taken out of active service in 1665. It suffered badly from erosion, and by the 1950s the gun room had collapsed into the sea.<a href="#cite_note-british-history330-50">[48]</a> </td></tr> <tr> <td><a href="/wiki/Sandgate_Castle" title="Sandgate Castle">Sandgate Castle</a> </td> <td><a href="/wiki/File:Sandgate_Castle.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Sandgate_Castle.jpg/90px-Sandgate_Castle.jpg" decoding="async" width="90" height="64" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/60/Sandgate_Castle.jpg/135px-Sandgate_Castle.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/60/Sandgate_Castle.jpg/180px-Sandgate_Castle.jpg 2x" data-file-width="1393" data-file-height="983" /></a> </td> <td><a href="/wiki/File:Sandgate_Castle_plan_1867_crop.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Sandgate_Castle_plan_1867_crop.jpg/90px-Sandgate_Castle_plan_1867_crop.jpg" decoding="async" width="90" height="94" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/97/Sandgate_Castle_plan_1867_crop.jpg/135px-Sandgate_Castle_plan_1867_crop.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/97/Sandgate_Castle_plan_1867_crop.jpg/180px-Sandgate_Castle_plan_1867_crop.jpg 2x" data-file-width="341" data-file-height="356" /></a> </td> <td><a href="/wiki/Folkestone" title="Folkestone">Folkestone</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.07353_N_1.14882_E_type:landmark_region:GB&title=Sandgate+Castle">51°04′25″N 1°08′56″E / 51.07353°N 1.14882°E / 51.07353; 1.14882 (Sandgate Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.073511_N_1.151942_E_region:GB_scale:25000">TR209352</a> </td> <td>1539–40 </td> <td>Kentish coast </td> <td>No </td> <td>The castle comprised a central stone keep, with three towers and a gatehouse. It was rebuilt in 1805 during the Napoleonic Wars, the keep becoming a Martello Tower. It suffered badly from coastal erosion, and was sold off into private ownership in 1888.<a href="#cite_note-51">[49]</a> </td></tr> <tr> <td><a href="/wiki/Sandown_Castle,_Kent" title="Sandown Castle, Kent">Sandown Castle</a> </td> <td><a href="/wiki/File:The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg/90px-The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg/135px-The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4f/The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg/180px-The_site_of_Sandown_Castle_-_geograph.org.uk_-_585517.jpg 2x" data-file-width="640" data-file-height="480" /></a> </td> <td><a href="/wiki/File:Diagram_of_Sandown_Castle.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/07/Diagram_of_Sandown_Castle.png/90px-Diagram_of_Sandown_Castle.png" decoding="async" width="90" height="84" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/07/Diagram_of_Sandown_Castle.png/135px-Diagram_of_Sandown_Castle.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/07/Diagram_of_Sandown_Castle.png/180px-Diagram_of_Sandown_Castle.png 2x" data-file-width="5198" data-file-height="4854" /></a> </td> <td>Deal <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.23843_N_1.40222_E_type:landmark_region:GB&title=Sandown+Castle">51°14′18″N 1°24′08″E / 51.23843°N 1.40222°E / 51.23843; 1.40222 (Sandown Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.238305_N_1.401070_E_region:GB_scale:25000">TR375543</a> </td> <td>1539–40 </td> <td>The Downs </td> <td>Yes </td> <td>The castle comprised a keep and four circular bastions, covering 0.59 acres (0.24 ha). During the Second English Civil War it was seized by pro-Royalist insurgents. In the 19th century it was largely demolished by the military; the remaining masonry is now encased in <a href="/wiki/Concrete" title="Concrete">concrete</a> as part of a <a href="/wiki/Sea_wall" class="mw-redirect" title="Sea wall">sea wall</a>.<a href="#cite_note-52">[50]</a> </td></tr> <tr> <td><a href="/wiki/Southsea_Castle" title="Southsea Castle">Southsea Castle</a> </td> <td><a href="/wiki/File:Southsea_castle_from_the_east.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Southsea_castle_from_the_east.JPG/90px-Southsea_castle_from_the_east.JPG" decoding="async" width="90" height="59" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Southsea_castle_from_the_east.JPG/135px-Southsea_castle_from_the_east.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Southsea_castle_from_the_east.JPG/180px-Southsea_castle_from_the_east.JPG 2x" data-file-width="3925" data-file-height="2594" /></a> </td> <td><a href="/wiki/File:Southsea_Castle_Plan_1577_unlabelled.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Southsea_Castle_Plan_1577_unlabelled.jpg/90px-Southsea_Castle_Plan_1577_unlabelled.jpg" decoding="async" width="90" height="85" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Southsea_Castle_Plan_1577_unlabelled.jpg/135px-Southsea_Castle_Plan_1577_unlabelled.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Southsea_Castle_Plan_1577_unlabelled.jpg/180px-Southsea_Castle_Plan_1577_unlabelled.jpg 2x" data-file-width="2374" data-file-height="2241" /></a> </td> <td>Portsmouth <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.77811_N_1.0888_W_type:landmark_region:GB&title=Southsea+Castle">50°46′41″N 1°05′20″W / 50.77811°N 1.08880°W / 50.77811; -1.08880 (Southsea Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.778023_N_1.089378_W_region:GB_scale:25000">SZ643980</a> </td> <td>1544 </td> <td>The Solent </td> <td>Yes </td> <td>The castle comprised a keep, gun platforms and angled bastions, forming an early English example of the trace italienne-style of fortification. It saw brief action at the start of the English Civil War when it was stormed by Parliamentary forces. The castle was expanded in the 1680s by Sir Bernard de Gomme and was redesigned again during the Napoleonic Wars and throughout the 19th century. It was decommissioned in 1960.<a href="#cite_note-53">[51]</a> </td></tr> <tr> <td>Walmer Bulwark </td> <td> </td> <td> </td> <td><a href="/wiki/Walmer" title="Walmer">Walmer</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.206059_N_1.4001156_E_type:landmark_region:GB&title=Walmer+Bulwark">51°12′22″N 1°24′00″E / 51.206059°N 1.4001156°E / 51.206059; 1.4001156 (Walmer Bulwark)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.205949_N_1.400116_E_region:GB_scale:25000">TR376507</a><a href="#cite_note-54">[52]</a> </td> <td>1540 </td> <td>The Downs </td> <td>N/A </td> <td>Also known as the Black Bulwark, the bulwark comprised an earthwork defence, forming part of a chain of defences between Sandown and Walmer Castle, linked by a trench or a covered way. It was designed by Stephen Haschenperg. By 1547, the bulwark was defaced and the guns had been removed; it was formally removed from service in 1550. The site has since been lost.<a href="#cite_note-55">[53]</a> </td></tr> <tr> <td><a href="/wiki/Walmer_Castle" title="Walmer Castle">Walmer Castle</a> </td> <td><a href="/wiki/File:Walmer_Castle_-_geograph.org.uk_-_1407476.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Walmer_Castle_-_geograph.org.uk_-_1407476.jpg/90px-Walmer_Castle_-_geograph.org.uk_-_1407476.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Walmer_Castle_-_geograph.org.uk_-_1407476.jpg/135px-Walmer_Castle_-_geograph.org.uk_-_1407476.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cb/Walmer_Castle_-_geograph.org.uk_-_1407476.jpg/180px-Walmer_Castle_-_geograph.org.uk_-_1407476.jpg 2x" data-file-width="640" data-file-height="426" /></a> </td> <td><a href="/wiki/File:Walmer_Plan,_modern_unlabelled.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Walmer_Plan%2C_modern_unlabelled.jpg/90px-Walmer_Plan%2C_modern_unlabelled.jpg" decoding="async" width="90" height="91" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Walmer_Plan%2C_modern_unlabelled.jpg/135px-Walmer_Plan%2C_modern_unlabelled.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b9/Walmer_Plan%2C_modern_unlabelled.jpg/180px-Walmer_Plan%2C_modern_unlabelled.jpg 2x" data-file-width="1553" data-file-height="1573" /></a> </td> <td>Walmer <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.20056_N_1.40203_E_type:landmark_region:GB&title=Walmer+Castle">51°12′02″N 1°24′07″E / 51.20056°N 1.40203°E / 51.20056; 1.40203 (Walmer Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.200522_N_1.401148_E_region:GB_scale:25000">TR377501</a> </td> <td>1539 </td> <td>The Downs </td> <td>Yes </td> <td>The castle comprised a keep and four circular bastions, covering 0.61 acres (0.25 ha). During the Second English Civil War, Walmer was seized by pro-Royalist insurgents and was only retaken by Parliamentary forces after several months' fighting. In the 18th century, Walmer became the official residence of the <a href="/wiki/Lord_Warden_of_the_Cinque_Ports" title="Lord Warden of the Cinque Ports">Lord Warden of the Cinque Ports</a> and was gradually modified from a military fortification into a private residence, being decommissioned in 1904.<a href="#cite_note-56">[54]</a> </td></tr> <tr> <td><a href="/wiki/East_and_West_Blockhouses" title="East and West Blockhouses">West Blockhouse</a> </td> <td><a href="/wiki/File:West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg/90px-West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg" decoding="async" width="90" height="60" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/eb/West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg/135px-West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/eb/West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg/180px-West_Blockhouse_Point_-_geograph.org.uk_-_532034.jpg 2x" data-file-width="640" data-file-height="426" /></a> </td> <td> </td> <td>Dale <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.6883_N_5.1579_W_type:landmark_region:GB&title=West+Blockhouse">51°41′18″N 5°09′28″W / 51.68830°N 5.15790°W / 51.68830; -5.15790 (West Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.688562_N_5.158239_W_region:GB_scale:25000">SM818036</a> </td> <td>1539 </td> <td>Milford Haven Waterway </td> <td>N/A </td> <td>The blockhouse was described by contemporaries as comprising a round tower, with eight gunports. It was destroyed in the 19th century to make way for the <a href="/wiki/West_Blockhouse_Fort" title="West Blockhouse Fort">West Blockhouse Fort</a>.<a href="#cite_note-57">[55]</a> </td></tr> <tr> <td><a href="/wiki/West_Cowes_Castle" class="mw-redirect" title="West Cowes Castle">West Cowes Castle</a> </td> <td><a href="/wiki/File:West_Cowes_Castle.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/West_Cowes_Castle.jpg/90px-West_Cowes_Castle.jpg" decoding="async" width="90" height="74" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/West_Cowes_Castle.jpg/135px-West_Cowes_Castle.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/West_Cowes_Castle.jpg/180px-West_Cowes_Castle.jpg 2x" data-file-width="2717" data-file-height="2243" /></a> </td> <td><a href="/wiki/File:West_Cowes_Castle_1725_crop.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/West_Cowes_Castle_1725_crop.png/90px-West_Cowes_Castle_1725_crop.png" decoding="async" width="90" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4e/West_Cowes_Castle_1725_crop.png/135px-West_Cowes_Castle_1725_crop.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4e/West_Cowes_Castle_1725_crop.png/180px-West_Cowes_Castle_1725_crop.png 2x" data-file-width="795" data-file-height="783" /></a> </td> <td>Cowes <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.76653_N_1.30111_W_type:landmark_region:GB&title=West+Cowes+Castle">50°46′00″N 1°18′04″W / 50.76653°N 1.30111°W / 50.76653; -1.30111 (West Cowes Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.766002_N_1.302309_W_region:GB_scale:25000">SZ493965</a> </td> <td>1539 </td> <td>River Medina </td> <td>No </td> <td>The castle comprised a circular bastion, flanking wings and a keep. It very briefly saw action during the English Civil War and was decommissioned in 1854, becoming the <a href="/wiki/Royal_Yacht_Squadron" title="Royal Yacht Squadron">Royal Yacht Squadron</a>'s new clubhouse. It formed the headquarters for part of the <a href="/wiki/D-Day" class="mw-redirect" title="D-Day">D-Day</a> invasion force during the Second World War.<a href="#cite_note-58">[56]</a> </td></tr> <tr> <td><a href="/wiki/West_Tilbury_Blockhouse" class="mw-redirect" title="West Tilbury Blockhouse">West Tilbury Blockhouse</a> </td> <td><a href="/wiki/File:Gun_emplacements,_Tilbury_Fort,_Essex_-_geograph.org.uk_-_26776.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Gun_emplacements%2C_Tilbury_Fort%2C_Essex_-_geograph.org.uk_-_26776.jpg/90px-Gun_emplacements%2C_Tilbury_Fort%2C_Essex_-_geograph.org.uk_-_26776.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/66/Gun_emplacements%2C_Tilbury_Fort%2C_Essex_-_geograph.org.uk_-_26776.jpg/135px-Gun_emplacements%2C_Tilbury_Fort%2C_Essex_-_geograph.org.uk_-_26776.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/66/Gun_emplacements%2C_Tilbury_Fort%2C_Essex_-_geograph.org.uk_-_26776.jpg/180px-Gun_emplacements%2C_Tilbury_Fort%2C_Essex_-_geograph.org.uk_-_26776.jpg 2x" data-file-width="640" data-file-height="480" /></a> </td> <td><a href="/wiki/File:Plan_of_West_Tilbury_Blockhouse.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Plan_of_West_Tilbury_Blockhouse.png/90px-Plan_of_West_Tilbury_Blockhouse.png" decoding="async" width="90" height="59" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Plan_of_West_Tilbury_Blockhouse.png/135px-Plan_of_West_Tilbury_Blockhouse.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Plan_of_West_Tilbury_Blockhouse.png/180px-Plan_of_West_Tilbury_Blockhouse.png 2x" data-file-width="3465" data-file-height="2270" /></a> </td> <td>Chadwell St Mary <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.45238_N_0.37357_E_type:landmark_region:GB&title=West+Tilbury+Blockhouse">51°27′09″N 0°22′25″E / 51.45238°N 0.37357°E / 51.45238; 0.37357 (West Tilbury Blockhouse)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=51.453486_N_0.374801_E_region:GB_scale:25000">TQ651754</a> </td> <td>1539 </td> <td>River Thames </td> <td>N/A </td> <td>The blockhouse was D-shaped, with a circular bastion facing the river. There were probably additional battery positions on both sides of the main defences, an additional outer ditch and ramparts were constructed in 1588. It was controlled by Parliament during the English Civil War and used to control traffic along the Thames. The surrounding fort was hugely expanded after 1670 and the blockhouse itself was finally demolished in 1868.<a href="#cite_note-59">[57]</a> </td></tr> <tr> <td><a href="/wiki/Yarmouth_Castle" title="Yarmouth Castle">Yarmouth Castle</a> </td> <td><a href="/wiki/File:Yarmouth_Castle,_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Yarmouth_Castle%2C_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg/90px-Yarmouth_Castle%2C_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg" decoding="async" width="90" height="68" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Yarmouth_Castle%2C_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg/135px-Yarmouth_Castle%2C_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Yarmouth_Castle%2C_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg/180px-Yarmouth_Castle%2C_Isle_of_Wight_-_geograph.org.uk_-_1720431.jpg 2x" data-file-width="1024" data-file-height="768" /></a> </td> <td><a href="/wiki/File:Yarmouth_Castle_diagram_-_simplified,_2nd_floor.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/Yarmouth_Castle_diagram_-_simplified%2C_2nd_floor.jpg/90px-Yarmouth_Castle_diagram_-_simplified%2C_2nd_floor.jpg" decoding="async" width="90" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/29/Yarmouth_Castle_diagram_-_simplified%2C_2nd_floor.jpg/135px-Yarmouth_Castle_diagram_-_simplified%2C_2nd_floor.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/29/Yarmouth_Castle_diagram_-_simplified%2C_2nd_floor.jpg/180px-Yarmouth_Castle_diagram_-_simplified%2C_2nd_floor.jpg 2x" data-file-width="2153" data-file-height="2128" /></a> </td> <td>Yarmouth <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1156832818"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.70663_N_1.50016_W_type:landmark_region:GB&title=Yarmouth+Castle">50°42′24″N 1°30′01″W / 50.70663°N 1.50016°W / 50.70663; -1.50016 (Yarmouth Castle)</a> <a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=List_of_Device_Forts&params=50.705872_N_1.501464_W_region:GB_scale:25000">SZ353897</a> </td> <td>1545 </td> <td><a href="/wiki/Yarmouth,_Isle_of_Wight" title="Yarmouth, Isle of Wight">Yarmouth Harbour</a> </td> <td>Yes </td> <td>The castle comprised a square artillery fort, built around a central courtyard with an angular bastion protecting the landward side. The bastion was a departure from earlier approaches and Yarmouth was the first to adopt this Italian-styled design in England. It remained in military and government use until the 1950s.<a href="#cite_note-60">[58]</a> </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2>[<a href="/w/index.php?title=List_of_Device_Forts&action=edit&section=2" title="Edit section: Notes">edit</a>]</div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-4"><a href="#cite_ref-4">^</a> In the 16th century, a variety of terms were used to describe these fortifications, including "blockhouses", "bulwarks", "castles" and "fortresses". Modern historians have also used different terms to describe and analyse the fortifications: B. Morley, for example, distinguishes between "Henrician castles" and "Henrician blockhouses"; Peter Harrington between the "castles/forts" and "blockhouses"; Andrew Saunders distinguishes between the "castles", "forts" and "blockhouses", but stresses the breadth of the Device programme across England and Wales.<a href="#cite_note-3">[3]</a> </li> <li id="cite_note-Money19thC-10"><a href="#cite_ref-Money19thC_10-0">^</a> Comparing 16th-century costs and prices with those of the modern period depends on the price comparison used. £376,000 in 1546 could be worth between £2,159 million and £67,260 million in 2015 terms, depending on the measure used.<a href="#cite_note-MeasuringWorth-9">[8]</a> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="References">References</h2>[<a href="/w/index.php?title=List_of_Device_Forts&action=edit&section=3" title="Edit section: References">edit</a>]</div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">^</a> <a href="#CITEREFMorley1976">Morley 1976</a>, pp. 8–9 </li> <li id="cite_note-2"><a href="#cite_ref-2">^</a> <a href="#CITEREFHarrington2007">Harrington 2007</a>, p. 11; <a href="#CITEREFWalton2010">Walton 2010</a>, p. 70 </li> <li id="cite_note-3"><a href="#cite_ref-3">^</a> <a href="#CITEREFMorley1976">Morley 1976</a>, pp. 8–9; <a href="#CITEREFHarrington2007">Harrington 2007</a>, pp. 3, 8; <a href="#CITEREFSaunders1989">Saunders 1989</a>, pp. 37, 40 </li> <li id="cite_note-5"><a href="#cite_ref-5">^</a> <a href="#CITEREFHarrington2007">Harrington 2007</a>, pp. 20–33; <a href="#CITEREFMorley1976">Morley 1976</a>, pp. 8–10; <a href="#CITEREFSaunders1989">Saunders 1989</a>, pp. 37–38 </li> <li id="cite_note-6"><a href="#cite_ref-6">^</a> <a href="#CITEREFSaunders1989">Saunders 1989</a>, p. 37 </li> <li id="cite_note-7"><a href="#cite_ref-7">^</a> <a href="#CITEREFSaunders1989">Saunders 1989</a>, p. 47; <a href="#CITEREFHarrington2007">Harrington 2007</a>, pp. 37–39 </li> <li id="cite_note-8"><a href="#cite_ref-8">^</a> <a href="#CITEREFHale1983">Hale 1983</a>, pp. 70–71 </li> <li id="cite_note-MeasuringWorth-9"><a href="#cite_ref-MeasuringWorth_9-0">^</a> <style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFLawrence_H._OfficerSamuel_H._Williamson2014" class="citation web cs2">Lawrence H. Officer; Samuel H. 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Exeter, UK: University of Exeter Press. pp. 34–49. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780859894241" title="Special:BookSources/9780859894241"><bdi>9780859894241</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=John+Leland+in+the+West+Country&rft.btitle=Topographical+Writers+in+South-West+England&rft.place=Exeter%2C+UK&rft.pages=34-49&rft.pub=University+of+Exeter+Press&rft.date=1996&rft.isbn=9780859894241&rft.aulast=Chandler&rft.aufirst=John&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFChapple2014" class="citation journal cs1">Chapple, Nick (2014). "A History of the National Collection: Volume Six, 1945-1953". Research Report Series. London, UK: English Heritage. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/2046-9799">2046-9799</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Research+Report+Series&rft.atitle=A+History+of+the+National+Collection%3A+Volume+Six%2C+1945-1953&rft.date=2014&rft.issn=2046-9799&rft.aulast=Chapple&rft.aufirst=Nick&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCoad1985" class="citation journal cs1">Coad, J. G. (1985). "Hurst Castle: The Evolution of a Tudor Fortress 1790-1945". Post-Medieval Archaeology. 19: 63–104. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1179%2Fpma.1985.005">10.1179/pma.1985.005</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Post-Medieval+Archaeology&rft.atitle=Hurst+Castle%3A+The+Evolution+of+a+Tudor+Fortress+1790-1945&rft.volume=19&rft.pages=63-104&rft.date=1985&rft_id=info%3Adoi%2F10.1179%2Fpma.1985.005&rft.aulast=Coad&rft.aufirst=J.+G.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCoad1990" class="citation book cs1">Coad, J. G. (1990). Hurst Castle, Hampshire (2nd ed.). London, UK: English Heritage. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-85074-053-4" title="Special:BookSources/1-85074-053-4"><bdi>1-85074-053-4</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Hurst+Castle%2C+Hampshire&rft.place=London%2C+UK&rft.edition=2nd&rft.pub=English+Heritage&rft.date=1990&rft.isbn=1-85074-053-4&rft.aulast=Coad&rft.aufirst=J.+G.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCoad2000" class="citation book cs1">Coad, Jonathan (2000). Deal Castle, Kent. London, UK: English Heritage. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1850746974" title="Special:BookSources/1850746974"><bdi>1850746974</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Deal+Castle%2C+Kent&rft.place=London%2C+UK&rft.pub=English+Heritage&rft.date=2000&rft.isbn=1850746974&rft.aulast=Coad&rft.aufirst=Jonathan&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCoad2006" class="citation journal cs1">Coad, Jonathan (2006). "Calshot Castle: The Later History of Tudor Fortress, 1793-1945". The English Heritage Historical Review. 1: 103–113. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1179%2F175201606797188516">10.1179/175201606797188516</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=The+English+Heritage+Historical+Review&rft.atitle=Calshot+Castle%3A+The+Later+History+of+Tudor+Fortress%2C+1793-1945&rft.volume=1&rft.pages=103-113&rft.date=2006&rft_id=info%3Adoi%2F10.1179%2F175201606797188516&rft.aulast=Coad&rft.aufirst=Jonathan&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCoad2008" class="citation book cs1">Coad, Jonathan (2008). "History of the Castle". In Lawson, Susannah (ed.). Walmer Castle and Gardens. London, UK: English Heritage. pp. 24–36. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-85074-726-0" title="Special:BookSources/978-1-85074-726-0"><bdi>978-1-85074-726-0</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=History+of+the+Castle&rft.btitle=Walmer+Castle+and+Gardens&rft.place=London%2C+UK&rft.pages=24-36&rft.pub=English+Heritage&rft.date=2008&rft.isbn=978-1-85074-726-0&rft.aulast=Coad&rft.aufirst=Jonathan&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCoad2013" class="citation book cs1">Coad, Jonathan (2013). Calshot Castle: Hampshire (revised ed.). London, UK: English Heritage. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781850741022" title="Special:BookSources/9781850741022"><bdi>9781850741022</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Calshot+Castle%3A+Hampshire&rft.place=London%2C+UK&rft.edition=revised&rft.pub=English+Heritage&rft.date=2013&rft.isbn=9781850741022&rft.aulast=Coad&rft.aufirst=Jonathan&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFColvinRansomeSummerson1982" class="citation book cs1">Colvin, H. M.; Ransome, D. R.; Summerson (1982). The History of the King's Works, Volume 4: 1485-1660, Part 2. London, UK: HMSO. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0116708328" title="Special:BookSources/0116708328"><bdi>0116708328</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+History+of+the+King%27s+Works%2C+Volume+4%3A+1485-1660%2C+Part+2&rft.place=London%2C+UK&rft.pub=HMSO&rft.date=1982&rft.isbn=0116708328&rft.aulast=Colvin&rft.aufirst=H.+M.&rft.au=Ransome%2C+D.+R.&rft.au=Summerson&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFCorney1968" class="citation book cs1">Corney, Arthur (1968). Southsea Castle. 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London, UK: Henry Gray. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/4866519">4866519</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Records+of+Walmer%2C+Together+with+%22The+Three+Castles+that+Keep+the+Downs%22&rft.place=London%2C+UK&rft.pub=Henry+Gray&rft.date=1890&rft_id=info%3Aoclcnum%2F4866519&rft.aulast=Elvin&rft.aufirst=Charles+R.+S.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFinley1994" class="citation book cs1">Finley, Eric Gault (1994). RCN Beach Commando "W". Ottawa, Canada: Gilmore. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/37489940">37489940</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=RCN+Beach+Commando+%22W%22&rft.place=Ottawa%2C+Canada&rft.pub=Gilmore&rft.date=1994&rft_id=info%3Aoclcnum%2F37489940&rft.aulast=Finley&rft.aufirst=Eric+Gault&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFry2014" class="citation journal cs1">Fry, Sebastian (2014). "A History of the National Heritage Collection: Volume Two: 1900-1913". Research Report Series. London, UK: English Heritage. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/2046-9799">2046-9799</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Research+Report+Series&rft.atitle=A+History+of+the+National+Heritage+Collection%3A+Volume+Two%3A+1900-1913&rft.date=2014&rft.issn=2046-9799&rft.aulast=Fry&rft.aufirst=Sebastian&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGarnett2005" class="citation book cs1">Garnett, Oliver (2005) [1993]. Brownsea Castle (corrected ed.). Swindon, UK: The National Trust. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-1-84359-110-8" title="Special:BookSources/978-1-84359-110-8"><bdi>978-1-84359-110-8</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Brownsea+Castle&rft.place=Swindon%2C+UK&rft.edition=corrected&rft.pub=The+National+Trust&rft.date=2005&rft.isbn=978-1-84359-110-8&rft.aulast=Garnett&rft.aufirst=Oliver&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGroves1879" class="citation journal cs1">Groves, T. B. (1879). "Notes on Sandsfoot Castle". Proceedings of the Dorset Natural History and Antiquarian Field Club. 3: 20–24.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Proceedings+of+the+Dorset+Natural+History+and+Antiquarian+Field+Club&rft.atitle=Notes+on+Sandsfoot+Castle&rft.volume=3&rft.pages=20-24&rft.date=1879&rft.aulast=Groves&rft.aufirst=T.+B.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHale1983" class="citation book cs1">Hale, John R. (1983). Renaissance War Studies. London, UK: Hambledon Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0907628176" title="Special:BookSources/0907628176"><bdi>0907628176</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Renaissance+War+Studies&rft.place=London%2C+UK&rft.pub=Hambledon+Press&rft.date=1983&rft.isbn=0907628176&rft.aulast=Hale&rft.aufirst=John+R.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHarrington2007" class="citation book cs1">Harrington, Peter (2007). The Castles of Henry VIII. Oxford, UK: Osprey Publishing. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781472803801" title="Special:BookSources/9781472803801"><bdi>9781472803801</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Castles+of+Henry+VIII&rft.place=Oxford%2C+UK&rft.pub=Osprey+Publishing&rft.date=2007&rft.isbn=9781472803801&rft.aulast=Harrington&rft.aufirst=Peter&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHarris1980" class="citation journal cs1">Harris, Edward C. (1980). "Archaeological Investigations at Sandgate Castle, Kent, 1976-9". 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Post-Medieval Archaeology. 13: 61–77. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1179%2Fpma.1979.002">10.1179/pma.1979.002</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Post-Medieval+Archaeology&rft.atitle=An+Aspect+of+the+1559+Survey+of+the+Isle+of+Wight%3A+The+State+of+all+the+Quenes+maties+Fortresses+and+Castelles&rft.volume=13&rft.pages=61-77&rft.date=1979&rft_id=info%3Adoi%2F10.1179%2Fpma.1979.002&rft.aulast=Kenyon&rft.aufirst=J.+R.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLawson2002" class="citation book cs1">Lawson, Susannah (2002). Portland Castle: Dorset. London, UK: English Heritage. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9781850747253" title="Special:BookSources/9781850747253"><bdi>9781850747253</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Portland+Castle%3A+Dorset&rft.place=London%2C+UK&rft.pub=English+Heritage&rft.date=2002&rft.isbn=9781850747253&rft.aulast=Lawson&rft.aufirst=Susannah&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLeland1907" class="citation book cs1">Leland, John (1907). Smith, Lucy Toumlin (ed.). The Itinerary of John Leland In or About the Years 1535-1543. Vol. 1. London, UK: George Bell and Sons. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/2858987">2858987</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+Itinerary+of+John+Leland+In+or+About+the+Years+1535-1543&rft.place=London%2C+UK&rft.pub=George+Bell+and+Sons&rft.date=1907&rft_id=info%3Aoclcnum%2F2858987&rft.aulast=Leland&rft.aufirst=John&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLewis1884" class="citation journal cs1">Lewis, T. Hayter (1884). "The Castles of Sandown and Sandgate". 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London, UK: Her Majesty's Stationery Office. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0116707771" title="Special:BookSources/0116707771"><bdi>0116707771</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Henry+VIII+and+the+Development+of+Coastal+Defence&rft.place=London%2C+UK&rft.pub=Her+Majesty%27s+Stationery+Office&rft.date=1976&rft.isbn=0116707771&rft.aulast=Morley&rft.aufirst=B.+M.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFNorman1920" class="citation journal cs1">Norman, W. C. (1920). "Sandsfoot Castle, Weymouth". 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Heidelberg, Germany: Springer. pp. 451–458. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9783642313196" title="Special:BookSources/9783642313196"><bdi>9783642313196</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Coastal+Erosion+and+Landsliding+Impact+on+Historic+Sites+in+SE+Britain&rft.btitle=Landslide+Science+and+Practice%3A+Volume+6%2C+Risk+Assessment%2C+Management+and+Migitation+edited+by+Claudio+Margottini%2C+Paolo+Canuti%2C+Kyoji+Sassa&rft.place=Heidelberg%2C+Germany&rft.pages=451-458&rft.pub=Springer&rft.date=2013&rft.isbn=9783642313196&rft.aulast=Tapete&rft.aufirst=Deodato&rft.au=Bromhead%2C+Edward&rft.au=Ibsen%2C+Maia&rft.au=Casagli%2C+Nicola&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFThompsonSmith1977" class="citation journal cs1">Thompson, D.; Smith, V. (1977). "The Excavation of the Gravesend Blockhouse". Archaeologia Cantiana. 93: 153–177.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Archaeologia+Cantiana&rft.atitle=The+Excavation+of+the+Gravesend+Blockhouse&rft.volume=93&rft.pages=153-177&rft.date=1977&rft.aulast=Thompson&rft.aufirst=D.&rft.au=Smith%2C+V.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWalton2010" class="citation journal cs1">Walton, Steven A. (2010). "State Building Through Building for the State: Foreign and Domestic Expertise in Tudor Fortification". Osiris. 25 (1): 66–84. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1086%2F657263">10.1086/657263</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:144384757">144384757</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Osiris&rft.atitle=State+Building+Through+Building+for+the+State%3A+Foreign+and+Domestic+Expertise+in+Tudor+Fortification&rft.volume=25&rft.issue=1&rft.pages=66-84&rft.date=2010&rft_id=info%3Adoi%2F10.1086%2F657263&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A144384757%23id-name%3DS2CID&rft.aulast=Walton&rft.aufirst=Steven+A.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AList+of+Device+Forts" class="Z3988"></li></ul> <style 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href="/wiki/Special:EditPage/Template:Device_Forts" title="Special:EditPage/Template:Device Forts"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Device_Forts" style="font-size:114%;margin:0 4em"><a href="/wiki/Device_Forts" title="Device Forts">Device Forts</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Essex" title="Essex">Essex</a> / <a href="/wiki/Suffolk" title="Suffolk">Suffolk</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Brightlingsea_Blockhouse" class="mw-redirect" title="Brightlingsea Blockhouse">Brightlingsea Blockhouse</a></li> <li><a href="/wiki/Harwich_blockhouses" class="mw-redirect" title="Harwich blockhouses">Harwich blockhouses</a></li> <li><a href="/wiki/Langar_Point" class="mw-redirect" title="Langar Point">Langar Point</a></li> <li><a href="/wiki/Langar_Rode" class="mw-redirect" title="Langar Rode">Langar Rode</a></li> <li><a href="/wiki/Mersea_Fort" title="Mersea Fort">Mersea Fort</a></li> <li><a href="/wiki/St_Osyth_Blockhouse" class="mw-redirect" title="St Osyth Blockhouse">St Osyth Blockhouse</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="7" style="width:1px;padding:0 0 0 2px"><div><a href="/wiki/File:Pendennis_Castle.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Pendennis_Castle.jpg/200px-Pendennis_Castle.jpg" decoding="async" width="200" height="133" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/39/Pendennis_Castle.jpg/300px-Pendennis_Castle.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/39/Pendennis_Castle.jpg/400px-Pendennis_Castle.jpg 2x" data-file-width="1760" data-file-height="1168" /></a></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Kent" title="Kent">Kent</a> / <a href="/wiki/Sussex" title="Sussex">Sussex</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Camber_Castle" title="Camber Castle">Camber Castle</a></li> <li><a href="/wiki/Deal_Castle" title="Deal Castle">Deal Castle</a></li> <li><a href="/wiki/Great_Turf_Bulwark" class="mw-redirect" title="Great Turf Bulwark">Great Turf Bulwark</a></li> <li><a href="/wiki/Great_White_Bulwark_of_Clay" class="mw-redirect" title="Great White Bulwark of Clay">Great White Bulwark of Clay</a></li> <li><a href="/wiki/Little_Turf_Bulwark" class="mw-redirect" title="Little Turf Bulwark">Little Turf Bulwark</a></li> <li><a href="/wiki/Walmer_Bulwark" class="mw-redirect" title="Walmer Bulwark">Walmer Bulwark</a></li> <li><a href="/wiki/Walmer_Castle" title="Walmer Castle">Walmer Castle</a></li> <li><a href="/wiki/Sandgate_Castle" title="Sandgate Castle">Sandgate Castle</a></li> <li><a href="/wiki/Sandown_Castle,_Kent" title="Sandown Castle, Kent">Sandown Castle</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pembrokeshire" title="Pembrokeshire">Pembrokeshire</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/East_and_West_Blockhouses" title="East and West Blockhouses">East and West Blockhouses</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/River_Thames" title="River Thames">The Thames</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/East_Tilbury_Blockhouse" class="mw-redirect" title="East Tilbury Blockhouse">East Tilbury Blockhouse</a></li> <li><a href="/wiki/Gravesend_Blockhouse" title="Gravesend Blockhouse">Gravesend Blockhouse</a></li> <li><a href="/wiki/Higham_Blockhouse" class="mw-redirect" title="Higham Blockhouse">Higham Blockhouse</a></li> <li><a href="/wiki/Milton_Blockhouse" title="Milton Blockhouse">Milton Blockhouse</a></li> <li><a href="/wiki/West_Tilbury_Blockhouse" class="mw-redirect" title="West Tilbury Blockhouse">West Tilbury Blockhouse</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Isle_of_Wight" title="Isle of Wight">Isle of Wight</a> / <a href="/wiki/The_Solent" title="The Solent">Solent</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Calshot_Castle" title="Calshot Castle">Calshot Castle</a></li> <li><a href="/wiki/East_Cowes_Castle_(16th_century)" class="mw-redirect" title="East Cowes Castle (16th century)">East Cowes Castle</a></li> <li><a href="/wiki/Hurst_Castle" title="Hurst Castle">Hurst Castle</a></li> <li><a href="/wiki/Netley_Castle" title="Netley Castle">Netley Castle</a></li> <li><a href="/wiki/Sandown_Castle,_Isle_of_Wight" title="Sandown Castle, Isle of Wight">Sandown Castle</a></li> <li><a href="/wiki/Sharpenrode_Bulwark" class="mw-redirect" title="Sharpenrode Bulwark">Sharpenrode Bulwark</a></li> <li><a href="/wiki/St_Andrew%27s_Castle,_Hamble" title="St Andrew's Castle, Hamble">St Andrew's Castle</a></li> <li><a href="/wiki/St_Helens_Bulwark" class="mw-redirect" title="St Helens Bulwark">St Helens Bulwark</a></li> <li><a href="/wiki/Southsea_Castle" title="Southsea Castle">Southsea Castle</a></li> <li><a href="/wiki/West_Cowes_Castle" class="mw-redirect" title="West Cowes Castle">West Cowes Castle</a></li> <li><a href="/wiki/Yarmouth_Castle" title="Yarmouth Castle">Yarmouth Castle</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cornwall" title="Cornwall">Cornwall</a> / <a href="/wiki/Devon" title="Devon">Devon</a> / <a href="/wiki/Dorset" title="Dorset">Dorset</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Brownsea_Castle" title="Brownsea Castle">Brownsea Castle</a></li> <li><a href="/wiki/Devil%27s_Point_Artillery_Tower" class="mw-redirect" title="Devil's Point Artillery Tower">Devil's Point Artillery Tower</a></li> <li><a href="/wiki/Little_Dennis_Blockhouse" class="mw-redirect" title="Little Dennis Blockhouse">Little Dennis Blockhouse</a></li> <li><a href="/wiki/Pendennis_Castle" title="Pendennis Castle">Pendennis Castle</a></li> <li><a href="/wiki/Portland_Castle" title="Portland Castle">Portland Castle</a></li> <li><a href="/wiki/Sandsfoot_Castle" title="Sandsfoot Castle">Sandsfoot Castle</a></li> <li><a href="/wiki/St_Catherine%27s_Castle" title="St Catherine's Castle">St Catherine's Castle</a></li> <li><a href="/wiki/St_Mawes_Castle" title="St Mawes Castle">St Mawes Castle</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Yorkshire_and_the_Humber" title="Yorkshire and the Humber">Yorkshire and the Humber</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hull_Castle" title="Hull Castle">Hull Castle</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=List_of_Device_Forts&oldid=1176772127#St_Helens_Bulwark">https://en.wikipedia.org/w/index.php?title=List_of_Device_Forts&oldid=1176772127#St_Helens_Bulwark</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a 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Template:Cite_book"," 7.39% 99.672 1 Template:Short_description"," 7.16% 96.621 20 Template:Cite_journal"," 7.08% 95.552 1 Template:Location_map+"," 6.92% 93.429 1 Template:Device_Forts"," 6.63% 89.414 1 Template:Navbox"]},"scribunto":{"limitreport-timeusage":{"value":"0.918","limit":"10.000"},"limitreport-memusage":{"value":10533346,"limit":52428800},"limitreport-logs":"anchor_id_list = table#1 {\n [\"Brightlingsea_Blockhouse\"] = 1,\n [\"CITEREFA._BaggsBeryl_BoardPhilip_CrummyClaude_Dove1994\"] = 1,\n [\"CITEREFAshton1994\"] = 1,\n [\"CITEREFBDRC_Continental2011\"] = 1,\n [\"CITEREFBarrett1910\"] = 1,\n [\"CITEREFBiddleHillerScottStreeten2001\"] = 1,\n [\"CITEREFBrooks1996\"] = 1,\n [\"CITEREFChandler1996\"] = 1,\n [\"CITEREFChapple2014\"] = 1,\n [\"CITEREFCoad1985\"] = 1,\n [\"CITEREFCoad1990\"] = 1,\n [\"CITEREFCoad2000\"] = 1,\n [\"CITEREFCoad2006\"] = 1,\n [\"CITEREFCoad2008\"] = 1,\n [\"CITEREFCoad2013\"] = 1,\n [\"CITEREFColvinRansomeSummerson1982\"] = 1,\n [\"CITEREFCorney1968\"] = 1,\n [\"CITEREFCrane2012\"] = 1,\n [\"CITEREFElvin1890\"] = 1,\n [\"CITEREFFinley1994\"] = 1,\n [\"CITEREFFry2014\"] = 1,\n [\"CITEREFGarnett2005\"] = 1,\n [\"CITEREFGroves1879\"] = 1,\n [\"CITEREFHale1983\"] = 1,\n [\"CITEREFHarrington2007\"] = 1,\n [\"CITEREFHarris1980\"] = 1,\n [\"CITEREFHirst1895\"] = 1,\n [\"CITEREFHowesForeman1999\"] = 1,\n [\"CITEREFJenkins2007\"] = 1,\n [\"CITEREFK._J._Alison1969\"] = 1,\n [\"CITEREFKenyon1979\"] = 1,\n [\"CITEREFLawrence_H._OfficerSamuel_H._Williamson2014\"] = 1,\n [\"CITEREFLawson2002\"] = 1,\n [\"CITEREFLeland1907\"] = 1,\n [\"CITEREFLewis1884\"] = 1,\n [\"CITEREFMichael_Heaton\"] = 1,\n [\"CITEREFMorley1976\"] = 1,\n [\"CITEREFNorman1920\"] = 1,\n [\"CITEREFO\u0026#039;Neill1985\"] = 1,\n [\"CITEREFPattison2009\"] = 1,\n [\"CITEREFRCHME1970\"] = 2,\n [\"CITEREFRigold2012\"] = 1,\n [\"CITEREFRoyal_Commission_on_Historical_Monuments_(England)1970\"] = 1,\n [\"CITEREFRutton1893\"] = 1,\n [\"CITEREFRutton1898\"] = 1,\n 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= 20,\n [\"Cite web\"] = 51,\n [\"Coflein\"] = 2,\n [\"Commons category\"] = 1,\n [\"Convert\"] = 2,\n [\"Coord\"] = 42,\n [\"Device Forts\"] = 1,\n [\"Efn\"] = 2,\n [\"Gbmappingsmall\"] = 42,\n [\"Harvnb\"] = 105,\n [\"Location map+\"] = 1,\n [\"Location map~\"] = 41,\n [\"Notelist\"] = 1,\n [\"Reflist\"] = 1,\n [\"Short description\"] = 1,\n [\"Use dmy dates\"] = 1,\n}\narticle_whitelist = table#1 {\n}\n"},"cachereport":{"origin":"mw-web.codfw.main-7dfb9d98f5-62mh4","timestamp":"20241125195431","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"List of Device Forts","url":"https:\/\/en.wikipedia.org\/wiki\/List_of_Device_Forts#St_Helens_Bulwark","sameAs":"http:\/\/www.wikidata.org\/entity\/Q27676162","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q27676162","author":{"@type":"Organization","name":"Contributors to Wikimedia 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