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id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Siege of Constantinople (1235)</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 15 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-15" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">15 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AD%D8%B5%D8%A7%D8%B1_%D8%A7%D9%84%D9%82%D8%B3%D8%B7%D9%86%D8%B7%D9%8A%D9%86%D9%8A%D8%A9_(1235)" title="حصار القسطنطينية (1235) – Arabic" lang="ar" hreflang="ar" data-title="حصار القسطنطينية (1235)" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9E%D0%B1%D1%81%D0%B0%D0%B4%D0%B0_%D0%BD%D0%B0_%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD%D0%BE%D0%BF%D0%BE%D0%BB_(1235)" title="Обсада на Константинопол (1235) – Bulgarian" lang="bg" hreflang="bg" data-title="Обсада на Константинопол (1235)" data-language-autonym="Български" data-language-local-name="Bulgarian" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Setge_de_Constantinoble_(1235)" title="Setge de Constantinoble (1235) – Catalan" lang="ca" hreflang="ca" data-title="Setge de Constantinoble (1235)" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CE%BF%CE%BB%CE%B9%CE%BF%CF%81%CE%BA%CE%AF%CE%B1_%CF%84%CE%B7%CF%82_%CE%9A%CF%89%CE%BD%CF%83%CF%84%CE%B1%CE%BD%CF%84%CE%B9%CE%BD%CE%BF%CF%8D%CF%80%CE%BF%CE%BB%CE%B7%CF%82_(1235)" title="Πολιορκία της Κωνσταντινούπολης (1235) – Greek" lang="el" hreflang="el" data-title="Πολιορκία της Κωνσταντινούπολης (1235)" data-language-autonym="Ελληνικά" data-language-local-name="Greek" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Sitio_de_Constantinopla_(1235)" title="Sitio de Constantinopla (1235) – Spanish" lang="es" hreflang="es" data-title="Sitio de Constantinopla (1235)" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Si%C3%A8ge_de_Constantinople_(1235)" title="Siège de Constantinople (1235) – French" lang="fr" hreflang="fr" data-title="Siège de Constantinople (1235)" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Pengepungan_Konstantinopel_(1235)" title="Pengepungan Konstantinopel (1235) – Indonesian" lang="id" hreflang="id" data-title="Pengepungan Konstantinopel (1235)" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Assedio_di_Costantinopoli_(1235)" title="Assedio di Costantinopoli (1235) – Italian" lang="it" hreflang="it" data-title="Assedio di Costantinopoli (1235)" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9E%D0%BF%D1%81%D0%B0%D0%B4%D0%B0_%D0%BD%D0%B0_%D0%A6%D0%B0%D1%80%D0%B8%D0%B3%D1%80%D0%B0%D0%B4_(1235)" title="Опсада на Цариград (1235) – Macedonian" lang="mk" hreflang="mk" data-title="Опсада на Цариград (1235)" data-language-autonym="Македонски" data-language-local-name="Macedonian" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Pengepungan_Constantinople_(1235)" title="Pengepungan Constantinople (1235) – Malay" lang="ms" hreflang="ms" data-title="Pengepungan Constantinople (1235)" data-language-autonym="Bahasa Melayu" data-language-local-name="Malay" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B3%E3%83%B3%E3%82%B9%E3%82%BF%E3%83%B3%E3%83%86%E3%82%A3%E3%83%8E%E3%83%BC%E3%83%97%E3%83%AB%E5%8C%85%E5%9B%B2%E6%88%A6_(1235%E5%B9%B4)" title="コンスタンティノープル包囲戦 (1235年) – Japanese" lang="ja" hreflang="ja" data-title="コンスタンティノープル包囲戦 (1235年)" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Cerco_de_Constantinopla_(1235)" title="Cerco de Constantinopla (1235) – Portuguese" lang="pt" hreflang="pt" data-title="Cerco de Constantinopla (1235)" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9E%D1%81%D0%B0%D0%B4%D0%B0_%D0%9A%D0%BE%D0%BD%D1%81%D1%82%D0%B0%D0%BD%D1%82%D0%B8%D0%BD%D0%BE%D0%BF%D0%BE%D0%BB%D1%8F_(1235)" title="Осада Константинополя (1235) – Russian" lang="ru" hreflang="ru" data-title="Осада Константинополя (1235)" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9E%D0%BF%D1%81%D0%B0%D0%B4%D0%B0_%D0%A6%D0%B0%D1%80%D0%B8%D0%B3%D1%80%D0%B0%D0%B4%D0%B0_(1235)" title="Опсада Цариграда (1235) – Serbian" lang="sr" hreflang="sr" data-title="Опсада Цариграда (1235)" data-language-autonym="Српски / srpski" data-language-local-name="Serbian" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Konstantinopolis_Ku%C5%9Fatmas%C4%B1_(1235-1236)" 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class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-coordinates" class="mw-indicator"><div class="mw-parser-output"><span id="coordinates"><a href="/wiki/Geographic_coordinate_system" title="Geographic coordinate system">Coordinates</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><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Siege_of_Constantinople_(1235)&params=41.0083_N_28.9750_E_source:wikidata"><span class="geo-nondefault"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">41°00′30″N</span> <span class="longitude">28°58′30″E</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-default"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">41.0083°N 28.9750°E</span><span style="display:none"> / <span class="geo">41.0083; 28.9750</span></span></span></a></span></span></div></div> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Unsuccessful siege of Constantinople by a Bulgarian-Nicaean alliance</div><style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">For other sieges of the city, see <a href="/wiki/List_of_sieges_of_Constantinople" title="List of sieges of Constantinople">list of sieges of Constantinople</a>.</div> <style data-mw-deduplicate="TemplateStyles:r963460841">@media all and (min-width:720px){.mw-parser-output .desktop-float-right{box-sizing:border-box;float:right;clear:right}}.mw-parser-output .infobox.vevent .status>p:first-child{margin:0}</style><table class="infobox vevent" style="width:25.5em;border-spacing:2px;"><tbody><tr><th class="summary" colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Siege of Constantinople (1235)</th></tr><tr><td colspan="2" style="background-color:#DCDCDC;color:inherit;text-align:center;vertical-align:middle;">Part of the <a href="/wiki/Nicaean%E2%80%93Latin_wars" class="mw-redirect" title="Nicaean–Latin wars">Nicaean–Latin wars</a> <br /> <a href="/wiki/Bulgarian%E2%80%93Latin_wars" title="Bulgarian–Latin wars">Bulgarian–Latin wars</a></td></tr><tr><td colspan="2" style="text-align:center;border-bottom:1px solid #aaa;line-height:1.5em;"><span typeof="mw:File"><a href="/wiki/File:Byzantine_Constantinople-en.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Byzantine_Constantinople-en.png/300px-Byzantine_Constantinople-en.png" decoding="async" width="300" height="271" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Byzantine_Constantinople-en.png/450px-Byzantine_Constantinople-en.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Byzantine_Constantinople-en.png/600px-Byzantine_Constantinople-en.png 2x" data-file-width="3200" data-file-height="2888" /></a></span><br />Map showing Constantinople and its walls during the Byzantine era</td></tr><tr><td colspan="2"><table style="width:100%;margin:0;padding:0;border:0;display:inline-table"><tbody><tr><th style="padding-right:1em">Date</th><td>1235</td></tr><tr><th style="padding-right:1em">Location</th><td><div class="location"><a href="/wiki/Constantinople" title="Constantinople">Constantinople</a>, <a href="/wiki/Latin_Empire" title="Latin Empire">Latin Empire</a><br />(modern-day <a href="/wiki/Istanbul" title="Istanbul">Istanbul</a>, <a href="/wiki/Turkey" title="Turkey">Turkey</a>)</div></td></tr><tr><th style="padding-right:1em">Result</th><td class="status"> Inconclusive</td></tr></tbody></table></td></tr><tr><th colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Belligerents</th></tr><tr><td style="width:50%;border-right:1px dotted #aaa;"> <a href="/wiki/Empire_of_Nicaea" title="Empire of Nicaea">Empire of Nicaea</a><br /><a href="/wiki/Second_Bulgarian_Empire" title="Second Bulgarian Empire">Bulgarian Empire</a></td><td style="width:50%;padding-left:0.25em"> <a href="/wiki/Latin_Empire" title="Latin Empire">Latin Empire</a><br /> <a href="/wiki/Duchy_of_Naxos" class="mw-redirect" title="Duchy of Naxos">Duchy of Naxos</a></td></tr><tr><th colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Commanders and leaders</th></tr><tr><td style="width:50%;border-right:1px dotted #aaa;"> <a href="/wiki/John_III_Doukas_Vatatzes" title="John III Doukas Vatatzes">John III Vatatzes</a><br /><a href="/wiki/Ivan_Asen_II_of_Bulgaria" class="mw-redirect" title="Ivan Asen II of Bulgaria">Ivan Asen II</a><br /><a href="/wiki/Manuel_Doukas" title="Manuel Doukas">Manuel Doukas</a><br /><a href="/wiki/Michael_II_Komnenos_Doukas" title="Michael II Komnenos Doukas">Michael II Komnenos Doukas</a></td><td style="width:50%;padding-left:0.25em"> <a href="/wiki/John_of_Brienne" title="John of Brienne">John of Brienne</a><br /><a href="/wiki/Angelo_Sanudo" title="Angelo Sanudo">Angelo Sanudo</a><br /><a href="/wiki/Geoffrey_II_of_Villehardouin" title="Geoffrey II of Villehardouin">Geoffrey II of Villehardouin</a><br /><a href="/wiki/John_of_B%C3%A9thune_(died_1238)" title="John of Béthune (died 1238)">John of Béthune</a></td></tr><tr><th colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Strength</th></tr><tr><td style="width:50%;border-right:1px dotted #aaa;"> Unknown</td><td style="width:50%;padding-left:0.25em"> Unknown</td></tr><tr><th colspan="2" style="background-color:#C3D6EF;color:inherit;text-align:center;vertical-align:middle;font-size:110%;">Casualties and losses</th></tr><tr><td style="width:50%;border-right:1px dotted #aaa;"> Unknown</td><td style="width:50%;padding-left:0.25em"> Unknown</td></tr></tbody></table> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist 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.navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Byzantine–Frankish_conflicts_of_the_Frankokratia" style="margin:0;float:right;clear:right;width:25.5em;margin-bottom:0.5em;margin-left:1em;;padding:3px"><table class="nowraplinks navbox-vertical mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background-color:#C3D6EF;color:inherit;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Battles_of_the_Frankokratia" title="Template:Battles of the Frankokratia"><abbr title="View this template" style="color:inherit">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Battles_of_the_Frankokratia" title="Template talk:Battles of the Frankokratia"><abbr title="Discuss this template" style="color:inherit">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Battles_of_the_Frankokratia" title="Special:EditPage/Template:Battles of the Frankokratia"><abbr title="Edit this template" style="color:inherit">e</abbr></a></li></ul></div><div id="Byzantine–Frankish_conflicts_of_the_Frankokratia" style="font-size:114%;margin:0 4em"><span style="line-height:1.6em">Byzantine–Frankish conflicts of the <a href="/wiki/Frankokratia" title="Frankokratia">Frankokratia</a></span></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <dl><dt><a href="/wiki/Fourth_Crusade" title="Fourth Crusade">Fourth Crusade</a></dt></dl> <ul><li><a href="/wiki/Siege_of_Constantinople_(1203)" title="Siege of Constantinople (1203)">Constantinople (1203)</a></li> <li><a href="/wiki/Sack_of_Constantinople" title="Sack of Constantinople">Constantinople (1204)</a></li></ul> <dl><dt>Epirote–Latin wars</dt></dl> <ul><li>Campaigns of <a href="/wiki/Michael_I_Komnenos_Doukas#Expansion_and_death" title="Michael I Komnenos Doukas">Michael I Komnenos Doukas</a> and <a href="/wiki/Theodore_Komnenos_Doukas" title="Theodore Komnenos Doukas">Theodore Komnenos Doukas</a></li></ul> <dl><dt><a href="/wiki/Nicaean%E2%80%93Latin_wars" class="mw-redirect" title="Nicaean–Latin wars">Nicaean–Latin wars</a></dt></dl> <ul><li><a href="/wiki/Battle_of_Adramyttion_(1205)" title="Battle of Adramyttion (1205)">Adramyttion</a></li> <li><a href="/wiki/Battle_of_the_Rhyndacus_(1211)" title="Battle of the Rhyndacus (1211)">Rhyndacus</a></li> <li><a href="/wiki/Battle_of_Poimanenon" title="Battle of Poimanenon">Poimanenon</a></li> <li><a class="mw-selflink selflink">Constantinople (1235)</a></li> <li><a href="/wiki/Battle_of_Constantinople_(1241)" title="Battle of Constantinople (1241)">Constantinople (1241)</a></li> <li><a href="/wiki/Battle_of_Pelagonia" title="Battle of Pelagonia">Pelagonia</a></li> <li><a href="/wiki/Siege_of_Constantinople_(1260)" title="Siege of Constantinople (1260)">Constantinople & Galata (1260)</a></li> <li><a href="/wiki/Reconquest_of_Constantinople" title="Reconquest of Constantinople">Constantinople (1261)</a></li></ul> <dl><dt>Conflicts in the Morea</dt></dl> <ul><li><a href="/wiki/Battle_of_the_Olive_Grove_of_Kountouras" title="Battle of the Olive Grove of Kountouras">Grove of Kountouras</a></li> <li><a href="/wiki/Battle_of_Prinitza" title="Battle of Prinitza">Prinitza</a></li> <li><a href="/wiki/Battle_of_Makryplagi" title="Battle of Makryplagi">Makryplagi</a></li> <li><a href="/wiki/Battle_of_Saint_George" title="Battle of Saint George">Saint George</a></li> <li><a href="/wiki/Battle_of_Gardiki" title="Battle of Gardiki">Gardiki</a></li> <li><a href="/wiki/Battle_of_the_Echinades_(1427)" title="Battle of the Echinades (1427)">Echinades</a></li> <li><a href="/wiki/Constantine_XI_Palaiologos#Despot_of_the_Morea" title="Constantine XI Palaiologos">Campaigns of Constantine XI</a></li></ul> <dl><dt>Angevin–Byzantine conflict</dt></dl> <ul><li><a href="/wiki/Battle_of_Neopatras" title="Battle of Neopatras">Neopatras</a></li> <li><a href="/wiki/Battle_of_Demetrias" title="Battle of Demetrias">Demetrias</a></li> <li><a href="/wiki/Licario" title="Licario">Licario's campaigns</a></li> <li><a href="/wiki/Siege_of_Berat_(1280%E2%80%931281)" title="Siege of Berat (1280–1281)">Berat</a></li></ul> <dl><dt>Wars with the Venetians, Catalans, and others</dt></dl> <ul><li><a href="/wiki/Genoese_occupation_of_Rhodes" title="Genoese occupation of Rhodes">Genoese occupation of Rhodes</a></li> <li><a href="/wiki/Battle_of_Settepozzi" title="Battle of Settepozzi">Settepozzi</a></li> <li><a href="/wiki/Byzantine%E2%80%93Venetian_War_(1296%E2%80%931302)" title="Byzantine–Venetian War (1296–1302)">Byzantine–Venetian War</a></li> <li><a href="/wiki/Battle_of_Apros" title="Battle of Apros">Apros</a></li> <li><a href="/wiki/Hospitaller_conquest_of_Rhodes" title="Hospitaller conquest of Rhodes">Hospitaller conquest of Rhodes</a></li> <li><a href="/wiki/Byzantine%E2%80%93Genoese_War_(1348%E2%80%931349)" title="Byzantine–Genoese War (1348–1349)">Byzantine–Genoese War</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Bulgarian–Latin_wars" style="margin:0;float:right;clear:right;width:25.5em;margin-bottom:0.5em;margin-left:1em;;padding:3px"><table class="nowraplinks navbox-vertical mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="background-color:#C3D6EF;color:inherit;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Campaignbox_Bulgarian-Latin_Wars" title="Template:Campaignbox Bulgarian-Latin Wars"><abbr title="View this template" style="color:inherit">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Campaignbox_Bulgarian-Latin_Wars" title="Template talk:Campaignbox Bulgarian-Latin Wars"><abbr title="Discuss this template" style="color:inherit">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Campaignbox_Bulgarian-Latin_Wars" title="Special:EditPage/Template:Campaignbox Bulgarian-Latin Wars"><abbr title="Edit this template" style="color:inherit">e</abbr></a></li></ul></div><div id="Bulgarian–Latin_wars" style="font-size:114%;margin:0 4em"><span style="line-height:1.6em"><a href="/wiki/Bulgarian%E2%80%93Latin_wars" title="Bulgarian–Latin wars"><span class="wrap">Bulgarian–Latin wars</span></a></span></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Battle_of_Adrianople_(1205)" title="Battle of Adrianople (1205)">Adrianople</a></li> <li><a href="/wiki/Battle_of_Serres_(1205)" title="Battle of Serres (1205)">Serres</a></li> <li><a href="/wiki/Battle_of_Rusion" title="Battle of Rusion">Rusion</a></li> <li><a href="/wiki/Battle_of_Rodosto" title="Battle of Rodosto">Rodosto</a></li> <li><a href="/wiki/Battle_of_Messinopolis" title="Battle of Messinopolis">Messinopolis</a></li> <li><a href="/wiki/Battle_of_Beroia_(1208)" title="Battle of Beroia (1208)">Beroia</a></li> <li><a href="/wiki/Battle_of_Philippopolis_(1208)" title="Battle of Philippopolis (1208)">Plovdiv</a></li> <li><a class="mw-selflink selflink">Constantinople</a></li></ul> </div></td></tr></tbody></table></div> <p>The <b>siege of Constantinople (1235)</b> was a joint Bulgarian–Nicaean siege on the capital of the <a href="/wiki/Latin_Empire" title="Latin Empire">Latin Empire</a>. <a href="/wiki/Latin_Empire" title="Latin Empire">Latin emperor</a> <a href="/wiki/John_of_Brienne" title="John of Brienne">John of Brienne</a> was besieged by the <a href="/wiki/Emperor_of_Nicaea" class="mw-redirect" title="Emperor of Nicaea">Nicaean emperor</a> <a href="/wiki/John_III_Doukas_Vatatzes" title="John III Doukas Vatatzes">John III Doukas Vatatzes</a> and <a href="/wiki/Tsar" title="Tsar">Tsar</a> <a href="/wiki/Ivan_Asen_II_of_Bulgaria" class="mw-redirect" title="Ivan Asen II of Bulgaria">Ivan Asen II of Bulgaria</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Prelude">Prelude</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=1" title="Edit section: Prelude"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>After Robert of Courtenay died in 1228, a new regency under <a href="/wiki/John_of_Brienne" title="John of Brienne">John of Brienne</a> was set up. After the disastrous <a href="/wiki/Despotate_of_Epirus" title="Despotate of Epirus">Epirote</a> defeat by the Bulgarians at the <a href="/wiki/Battle_of_Klokotnitsa" title="Battle of Klokotnitsa">Battle of Klokotnitsa</a>,<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> the Epirote threat to the Latin Empire was removed, only to be replaced by Nicaea, which started acquiring territories in Greece. Emperor <a href="/wiki/John_III_Doukas_Vatatzes" title="John III Doukas Vatatzes">John III Doukas Vatatzes</a> of Nicaea concluded an alliance with Bulgaria, which in 1235 resulted in a joint campaign against the Latin Empire. </p> <div class="mw-heading mw-heading2"><h2 id="Siege">Siege</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=2" title="Edit section: Siege"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 1235, <a href="/wiki/Angelo_Sanudo" title="Angelo Sanudo">Angelo Sanudo</a>, the second <a href="/wiki/Duke_of_the_Archipelago" class="mw-redirect" title="Duke of the Archipelago">Duke of the Archipelago</a>, sent a naval squadron for the defense of <a href="/wiki/Constantinople" title="Constantinople">Constantinople</a>, where the <a href="/wiki/Latin_Empire" title="Latin Empire">Emperor</a> <a href="/wiki/John_of_Brienne" title="John of Brienne">John of Brienne</a> was being besieged by <a href="/wiki/John_III_Doukas_Vatatzes" title="John III Doukas Vatatzes">John III Doukas Vatatzes</a>, <a href="/wiki/Emperor_of_Nicaea" class="mw-redirect" title="Emperor of Nicaea">Emperor of Nicaea</a>, and <a href="/wiki/Ivan_Asen_II_of_Bulgaria" class="mw-redirect" title="Ivan Asen II of Bulgaria">Ivan Asen II of Bulgaria</a>. The joint Bulgarian-Nicaean siege was unsuccessful.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> The allies retreated in the autumn because of the incoming winter. <a href="/wiki/Ivan_Asen_II_of_Bulgaria" class="mw-redirect" title="Ivan Asen II of Bulgaria">Ivan Asen II</a> and Vatatzes agreed to continue the siege in the next year, but the Bulgarian Emperor later refused to send troops. With the death of John of Brienne in 1237, the Bulgarians broke the treaty with Vatatzes because of the prospect that Ivan Asen II could become a regent of the Latin Empire <sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2013)">citation needed</span></a></i>]</sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Aftermath">Aftermath</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=3" title="Edit section: Aftermath"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>By 1247, the Nicaeans had effectively surrounded Constantinople, with only the city's strong <a href="/wiki/Walls_of_Constantinople" title="Walls of Constantinople">walls</a> holding them at bay, and the <a href="/wiki/Battle_of_Pelagonia" title="Battle of Pelagonia">Battle of Pelagonia</a> in 1258 signaled the beginning of the end of Latin predominance in Greece. Thus, on July 25, 1261, with most of the Latin troops away on campaign, the Nicaean general <a href="/wiki/Alexios_Strategopoulos" title="Alexios Strategopoulos">Alexios Strategopoulos</a> found an unguarded entrance to the city,<sup id="cite_ref-Nicol35_4-0" class="reference"><a href="#cite_note-Nicol35-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> and entered it with his troops, restoring the Byzantine Empire for his master, <a href="/wiki/Michael_VIII_Palaiologos" title="Michael VIII Palaiologos">Michael VIII Palaiologos</a>. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Siege_of_Constantinople_(1203)" title="Siege of Constantinople (1203)">Siege of Constantinople (1203)</a></li> <li><a href="/wiki/Sack_of_Constantinople_(1204)" class="mw-redirect" title="Sack of Constantinople (1204)">Sack of Constantinople (1204)</a></li> <li><a href="/wiki/Siege_of_Constantinople_(1260)" title="Siege of Constantinople (1260)">Siege of Constantinople (1260)</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></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"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">Turnovo inscription of Tsar Ivan Asen II in the Holy 40 Martyrs Church in honour of the victory at Klokotnitsa on 9 March 1230</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20110721185435/http://badley.info/history/Battle-of-Klokonista-Bulgaria.event.html">"Battle of Klokonista"</a>. badley.info. Archived from <a rel="nofollow" class="external text" href="http://badley.info/history/Battle-of-Klokonista-Bulgaria.event.html">the original</a> on 2011-07-21<span class="reference-accessdate">. Retrieved <span class="nowrap">2008-12-29</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Battle+of+Klokonista&rft.pub=badley.info&rft_id=http%3A%2F%2Fbadley.info%2Fhistory%2FBattle-of-Klokonista-Bulgaria.event.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASiege+of+Constantinople+%281235%29" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.nndb.com/people/854/000101551/">"John III Ducas Vatatzes"</a>. NNDB.com<span class="reference-accessdate">. Retrieved <span class="nowrap">2009-05-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=John+III+Ducas+Vatatzes&rft.pub=NNDB.com&rft_id=http%3A%2F%2Fwww.nndb.com%2Fpeople%2F854%2F000101551%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASiege+of+Constantinople+%281235%29" class="Z3988"></span></span> </li> <li id="cite_note-Nicol35-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-Nicol35_4-0">^</a></b></span> <span class="reference-text">Nicol (1993), p. 34.<sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citing_sources#What_information_to_include" title="Wikipedia:Citing sources"><span title="A complete citation is needed. (July 2020)">full citation needed</span></a></i>]</sup></span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Bibliography">Bibliography</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=6" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLangdon1985" class="citation book cs1">Langdon, John S. (1985). "The Forgotten Byzantino-Bulgarian Assault and Siege of Constantinople 1235–1236 and the Breakup of the 'Entente Cordiale' Between John III Ducas Vatatzes and John Asen II in 1236 as Background to the Genesis of the Hohenstaufen-Vatatzes alliance of 1242". <i>Byzantine Studies in Honor of Milton V. Anastos</i>. Malibu. pp. 105–36. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-89003-168-1" title="Special:BookSources/0-89003-168-1"><bdi>0-89003-168-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=The+Forgotten+Byzantino-Bulgarian+Assault+and+Siege+of+Constantinople+1235%E2%80%931236+and+the+Breakup+of+the+%27Entente+Cordiale%27+Between+John+III+Ducas+Vatatzes+and+John+Asen+II+in+1236+as+Background+to+the+Genesis+of+the+Hohenstaufen-Vatatzes+alliance+of+1242&rft.btitle=Byzantine+Studies+in+Honor+of+Milton+V.+Anastos&rft.place=Malibu&rft.pages=105-36&rft.date=1985&rft.isbn=0-89003-168-1&rft.aulast=Langdon&rft.aufirst=John+S.&rfr_id=info%3Asid%2Fen.wikipedia.org%3ASiege+of+Constantinople+%281235%29" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_book" title="Template:Cite book">cite book</a>}}</code>: CS1 maint: location missing publisher (<a href="/wiki/Category:CS1_maint:_location_missing_publisher" title="Category:CS1 maint: location missing publisher">link</a>)</span></li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Siege_of_Constantinople_(1235)&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20100107105119/http://www2.fhw.gr/chronos/projects/fragokratia/en/webpages/frago.html"><i>The Latin Occupation in the Greek Lands – The Latin Empire</i>, from the Foundation of the Hellenic World</a></li></ul> <p><span class="geo-inline-hidden noexcerpt"><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><span class="plainlinks nourlexpansion"><a class="external text" href="https://geohack.toolforge.org/geohack.php?pagename=Siege_of_Constantinople_(1235)&params=41.0083_N_28.9750_E_source:wikidata"><span class="geo-nondefault"><span class="geo-dms" title="Maps, aerial photos, and other data for this location"><span class="latitude">41°00′30″N</span> <span class="longitude">28°58′30″E</span></span></span><span class="geo-multi-punct"> / </span><span class="geo-default"><span class="geo-dec" title="Maps, aerial photos, and other data for this location">41.0083°N 28.9750°E</span><span style="display:none"> / <span class="geo">41.0083; 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