CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-available" lang="cy" dir="ltr"> <head> <meta charset="UTF-8"> <title>John Dee - Wicipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )cywikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy" ,"wgMonthNames":["","Ionawr","Chwefror","Mawrth","Ebrill","Mai","Mehefin","Gorffennaf","Awst","Medi","Hydref","Tachwedd","Rhagfyr"],"wgRequestId":"c8990f43-c171-4273-8e53-fd16be484ca1","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"John_Dee","wgTitle":"John Dee","wgCurRevisionId":13141694,"wgRevisionId":13141694,"wgArticleId":2709,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Pages using the JsonConfig extension","Webarchive template wayback links","CS1 Saesneg-language sources (en)","Articles with hCards","Erthyglau sy'n defnyddio Nodyn Gwybodlen person Wicidata","AC with 17 elements","Dalennau gyda gwybodaeth am Reolaeth Awdurdod","Wikipedia articles with VIAF identifiers","Wikipedia articles with LCCN identifiers","Wikipedia articles with ISNI identifiers","Wikipedia articles with GND identifiers","Wikipedia articles with SELIBR identifiers", "Wikipedia articles with BNF identifiers","Wikipedia articles with BIBSYS identifiers","Wikipedia articles with NLA identifiers","Wikipedia articles with faulty authority control identifiers (SBN)","Wikipedia articles with ODNB identifiers","Prosiect WiciAddysg","Alcemi","Cyfrinwyr","Cymry Llundain","Daearyddwyr","Genedigaethau 1527","Llenorion yr ocwlt","Llenorion Saesneg","Marwolaethau 1608","Mathemategwyr o Gymru","Seryddwyr","Pobl o Oes y Tuduriaid"],"wgPageViewLanguage":"cy","wgPageContentLanguage":"cy","wgPageContentModel":"wikitext","wgRelevantPageName":"John_Dee","wgRelevantArticleId":2709,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"cy","pageLanguageDir":"ltr","pageVariantFallbacks":"cy"},"wgMFDisplayWikibaseDescriptions":{ "search":true,"watchlist":true,"tagline":true,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":10000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q201484","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={"ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons": "ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","mediawiki.page.media","site","mediawiki.page.ready","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming","ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=cy&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=cy&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=cy&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/John_Dee_Ashmolean.jpg/1200px-John_Dee_Ashmolean.jpg"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="1200"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/John_Dee_Ashmolean.jpg/800px-John_Dee_Ashmolean.jpg"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="800"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/John_Dee_Ashmolean.jpg/640px-John_Dee_Ashmolean.jpg"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="640"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="John Dee - Wicipedia"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//cy.m.wikipedia.org/wiki/John_Dee"> <link rel="alternate" type="application/x-wiki" title="Golygu" href="/w/index.php?title=John_Dee&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wicipedia (cy)"> <link rel="EditURI" type="application/rsd+xml" href="//cy.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://cy.wikipedia.org/wiki/John_Dee"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.cy"> <link rel="alternate" type="application/atom+xml" title="Ffrwd Atom Wicipedia" href="/w/index.php?title=Arbennig:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-John_Dee rootpage-John_Dee skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Neidio i'r cynnwys</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Safle"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Prif ddewislen" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Prif ddewislen</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Prif ddewislen</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">cuddio</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Panel llywio </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage" class="mw-list-item"><a href="/wiki/Hafan" title="Ymweld â'r Hafan [z]" accesskey="z"><span>Hafan</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wicipedia:Porth_y_Gymuned" title="Pethau i'w gwneud, adnoddau a thudalennau'r gymuned"><span>Porth y Gymuned</span></a></li><li id="n-cafe" class="mw-list-item"><a href="/wiki/Wicipedia:Y_Caffi"><span>Y Caffi</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Categori:Materion_cyfoes" title="Gwybodaeth yn gysylltiedig â materion cyfoes"><span>Materion cyfoes</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Arbennig:RecentChanges" title="Rhestr y newidiadau diweddar ar y wici. [r]" accesskey="r"><span>Newidiadau diweddar</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Arbennig:Random" title="Llwytho tudalen ar hap [x]" accesskey="x"><span>Erthygl ar hap</span></a></li><li id="n-help" class="mw-list-item"><a href="/wiki/Wicipedia:Cymorth" title="Tudalennau cymorth"><span>Cymorth</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Hafan" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wicipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-cy.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-cy.svg" width="120" height="13" style="width: 7.5em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Arbennig:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Chwilio Wicipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Chwilio</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Chwilio Wicipedia" aria-label="Chwilio Wicipedia" autocapitalize="sentences" title="Chwilio Wicipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Arbennig:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Chwilio</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Offer personol"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Gwedd"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Newidiwch ymddangosiad maint ffont, lled a lliw y dudalen" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Gwedd" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Gwedd</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_cy.wikipedia.org&uselang=cy" class=""><span>Rhoi</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Arbennig:CreateAccount&returnto=John+Dee" title="Rydym yn argymell eich bod yn creu cyfri ac yn menwgofnodi. Fodd bynnag, dydy hyn ddim yn orfodol" class=""><span>Creu cyfrif</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Arbennig:UserLogin&returnto=John+Dee" title="Fe'ch anogir i fewngofnodi, er nad oes rhaid gwneud. [o]" accesskey="o" class=""><span>Mewngofnodi</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Rhagor o opsiynau" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Offer personol" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Offer personol</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Dewislen defnyddiwr" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_cy.wikipedia.org&uselang=cy"><span>Rhoi</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Arbennig:CreateAccount&returnto=John+Dee" title="Rydym yn argymell eich bod yn creu cyfri ac yn menwgofnodi. Fodd bynnag, dydy hyn ddim yn orfodol"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Creu cyfrif</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Arbennig:UserLogin&returnto=John+Dee" title="Fe'ch anogir i fewngofnodi, er nad oes rhaid gwneud. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Mewngofnodi</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Tudalennau ar gyfer golygyddion allgofnodedig <a href="/wiki/Cymorth:Cyflwyniad" aria-label="Dysgu mwy am olygu"><span>dysgu mwy</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Arbennig:MyContributions" title="Rhestr golygiadau o'r cyfeiriad IP hwn [y]" accesskey="y"><span>Cyfraniadau</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Arbennig:MyTalk" title="Sgwrs ynglŷn â golygiadau o'r cyfeiriad IP hwn [n]" accesskey="n"><span>Sgwrs</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Safle"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Cynnwys" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Cynnwys</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">cuddio</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Y dechrau</div> </a> </li> <li id="toc-Bywyd_cynnar" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bywyd_cynnar"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Bywyd cynnar</span> </div> </a> <ul id="toc-Bywyd_cynnar-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ei_waith" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Ei_waith"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Ei waith</span> </div> </a> <ul id="toc-Ei_waith-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Y_cyfrinydd" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Y_cyfrinydd"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Y cyfrinydd</span> </div> </a> <button aria-controls="toc-Y_cyfrinydd-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toglo is-adran Y cyfrinydd</span> </button> <ul id="toc-Y_cyfrinydd-sublist" class="vector-toc-list"> <li id="toc-Steganographia" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Steganographia"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span><i>Steganographia</i></span> </div> </a> <ul id="toc-Steganographia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Mathematical_Preface" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Mathematical_Preface"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span><i>Mathematical Preface</i></span> </div> </a> <ul id="toc-Mathematical_Preface-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Bywyd_personol" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Bywyd_personol"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Bywyd personol</span> </div> </a> <ul id="toc-Bywyd_personol-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Angylion_a_rhyw" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Angylion_a_rhyw"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Angylion a rhyw</span> </div> </a> <ul id="toc-Angylion_a_rhyw-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Heddiw" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Heddiw"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Heddiw</span> </div> </a> <ul id="toc-Heddiw-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Cyfeiriadau" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Cyfeiriadau"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Cyfeiriadau</span> </div> </a> <ul id="toc-Cyfeiriadau-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Gweler_hefyd" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Gweler_hefyd"> <div class="vector-toc-text"> <span class="vector-toc-numb">8</span> <span>Gweler hefyd</span> </div> </a> <ul id="toc-Gweler_hefyd-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Cynnwys" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toglo'r tabl cynnwys" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toglo'r tabl cynnwys</span> </label> <div class="vector-dropdown-content"> <div 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">John Dee</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="Ewch i erthygl mewn iaith arall. Ar gael mewn 51 iaith" > <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-51" 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">51 iaith</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%AC%D9%88%D9%86_%D8%AF%D9%8A" title="جون دي - Arabeg" lang="ar" hreflang="ar" data-title="جون دي" data-language-autonym="العربية" data-language-local-name="Arabeg" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-arz mw-list-item"><a href="https://arz.wikipedia.org/wiki/%D8%AC%D9%88%D9%86_%D8%AF%D9%89_(%D9%81%D9%8A%D9%84%D8%B3%D9%88%D9%81_%D9%85%D9%86_%D8%A7%D9%84%D9%85%D9%85%D9%84%D9%83%D9%87_%D8%A7%D9%84%D9%85%D8%AA%D8%AD%D8%AF%D9%87)" title="جون دى (فيلسوف من المملكه المتحده) - Arabeg yr Aifft" lang="arz" hreflang="arz" data-title="جون دى (فيلسوف من المملكه المتحده)" data-language-autonym="مصرى" data-language-local-name="Arabeg yr Aifft" class="interlanguage-link-target"><span>مصرى</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%D8%AF%DB%8C" title="جان دی - South Azerbaijani" lang="azb" hreflang="azb" data-title="جان دی" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%94%D0%B6%D0%BE%D0%BD_%D0%94%D0%B8%D0%B9" title="Джон Дий - Bwlgareg" lang="bg" hreflang="bg" data-title="Джон Дий" data-language-autonym="Български" data-language-local-name="Bwlgareg" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/John_Dee" title="John Dee - Bosnieg" lang="bs" hreflang="bs" data-title="John Dee" data-language-autonym="Bosanski" data-language-local-name="Bosnieg" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/John_Dee" title="John Dee - Catalaneg" lang="ca" hreflang="ca" data-title="John Dee" data-language-autonym="Català" data-language-local-name="Catalaneg" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/John_Dee" title="John Dee - Tsieceg" lang="cs" hreflang="cs" data-title="John Dee" data-language-autonym="Čeština" data-language-local-name="Tsieceg" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/John_Dee" title="John Dee - Daneg" lang="da" hreflang="da" data-title="John Dee" data-language-autonym="Dansk" data-language-local-name="Daneg" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/John_Dee" title="John Dee - Almaeneg" lang="de" hreflang="de" data-title="John Dee" data-language-autonym="Deutsch" data-language-local-name="Almaeneg" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A4%CE%B6%CF%89%CE%BD_%CE%9D%CF%84%CE%B7" title="Τζων Ντη - Groeg" lang="el" hreflang="el" data-title="Τζων Ντη" data-language-autonym="Ελληνικά" data-language-local-name="Groeg" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/John_Dee" title="John Dee - Saesneg" lang="en" hreflang="en" data-title="John Dee" data-language-autonym="English" data-language-local-name="Saesneg" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/John_Dee" title="John Dee - Esperanto" lang="eo" hreflang="eo" data-title="John Dee" data-language-autonym="Esperanto" data-language-local-name="Esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/John_Dee" title="John Dee - Sbaeneg" lang="es" hreflang="es" data-title="John Dee" data-language-autonym="Español" data-language-local-name="Sbaeneg" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/John_Dee" title="John Dee - Basgeg" lang="eu" hreflang="eu" data-title="John Dee" data-language-autonym="Euskara" data-language-local-name="Basgeg" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%D8%AF%DB%8C" title="جان دی - Perseg" lang="fa" hreflang="fa" data-title="جان دی" data-language-autonym="فارسی" data-language-local-name="Perseg" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/John_Dee" title="John Dee - Ffinneg" lang="fi" hreflang="fi" data-title="John Dee" data-language-autonym="Suomi" data-language-local-name="Ffinneg" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/John_Dee" title="John Dee - Ffrangeg" lang="fr" hreflang="fr" data-title="John Dee" data-language-autonym="Français" data-language-local-name="Ffrangeg" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/John_Dee" title="John Dee - Galisieg" lang="gl" hreflang="gl" data-title="John Dee" data-language-autonym="Galego" data-language-local-name="Galisieg" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%92%27%D7%95%D7%9F_%D7%93%D7%99" title="ג'ון די - Hebraeg" lang="he" hreflang="he" data-title="ג'ון די" data-language-autonym="עברית" data-language-local-name="Hebraeg" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/John_Dee" title="John Dee - Croateg" lang="hr" hreflang="hr" data-title="John Dee" data-language-autonym="Hrvatski" data-language-local-name="Croateg" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/John_Dee" title="John Dee - Creol Haiti" lang="ht" hreflang="ht" data-title="John Dee" data-language-autonym="Kreyòl ayisyen" data-language-local-name="Creol Haiti" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/John_Dee" title="John Dee - Hwngareg" lang="hu" hreflang="hu" data-title="John Dee" data-language-autonym="Magyar" data-language-local-name="Hwngareg" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8B%D5%B8%D5%B6_%D4%B4%D5%AB" title="Ջոն Դի - Armeneg" lang="hy" hreflang="hy" data-title="Ջոն Դի" data-language-autonym="Հայերեն" data-language-local-name="Armeneg" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/John_Dee" title="John Dee - Indoneseg" lang="id" hreflang="id" data-title="John Dee" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indoneseg" 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/John_Dee" title="John Dee - Eidaleg" lang="it" hreflang="it" data-title="John Dee" data-language-autonym="Italiano" data-language-local-name="Eidaleg" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B8%E3%83%A7%E3%83%B3%E3%83%BB%E3%83%87%E3%82%A3%E3%83%BC" title="ジョン・ディー - Japaneeg" lang="ja" hreflang="ja" data-title="ジョン・ディー" data-language-autonym="日本語" data-language-local-name="Japaneeg" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%A1%B4_%EB%94%94" title="존 디 - Coreeg" lang="ko" hreflang="ko" data-title="존 디" data-language-autonym="한국어" data-language-local-name="Coreeg" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Ioannes_Dee" title="Ioannes Dee - Lladin" lang="la" hreflang="la" data-title="Ioannes Dee" data-language-autonym="Latina" data-language-local-name="Lladin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/D%C5%BEons_D%C4%AB" title="Džons Dī - Latfieg" lang="lv" hreflang="lv" data-title="Džons Dī" data-language-autonym="Latviešu" data-language-local-name="Latfieg" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%8F%D0%BE%D0%BD_%D0%94%D0%B8" title="Џон Ди - Macedoneg" lang="mk" hreflang="mk" data-title="Џон Ди" data-language-autonym="Македонски" data-language-local-name="Macedoneg" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%82%E1%80%BB%E1%80%BD%E1%80%94%E1%80%BA%E1%80%92%E1%80%AE%E1%80%B8" title="ဂျွန်ဒီး - Byrmaneg" lang="my" hreflang="my" data-title="ဂျွန်ဒီး" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="Byrmaneg" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/John_Dee" title="John Dee - Iseldireg" lang="nl" hreflang="nl" data-title="John Dee" data-language-autonym="Nederlands" data-language-local-name="Iseldireg" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/John_Dee" title="John Dee - Norwyeg Nynorsk" lang="nn" hreflang="nn" data-title="John Dee" data-language-autonym="Norsk nynorsk" data-language-local-name="Norwyeg Nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/John_Dee" title="John Dee - Norwyeg Bokmål" lang="nb" hreflang="nb" data-title="John Dee" data-language-autonym="Norsk bokmål" data-language-local-name="Norwyeg Bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/John_Dee" title="John Dee - Pwyleg" lang="pl" hreflang="pl" data-title="John Dee" data-language-autonym="Polski" data-language-local-name="Pwyleg" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ps mw-list-item"><a href="https://ps.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%DA%89%D9%8A" title="جان ډي - Pashto" lang="ps" hreflang="ps" data-title="جان ډي" data-language-autonym="پښتو" data-language-local-name="Pashto" class="interlanguage-link-target"><span>پښتو</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/John_Dee" title="John Dee - Portiwgaleg" lang="pt" hreflang="pt" data-title="John Dee" data-language-autonym="Português" data-language-local-name="Portiwgaleg" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/John_Dee" title="John Dee - Rwmaneg" lang="ro" hreflang="ro" data-title="John Dee" data-language-autonym="Română" data-language-local-name="Rwmaneg" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B8,_%D0%94%D0%B6%D0%BE%D0%BD" title="Ди, Джон - Rwseg" lang="ru" hreflang="ru" data-title="Ди, Джон" data-language-autonym="Русский" data-language-local-name="Rwseg" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/John_Dee" title="John Dee - Serbo-Croateg" lang="sh" hreflang="sh" data-title="John Dee" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="Serbo-Croateg" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/John_Dee" title="John Dee - Simple English" lang="en-simple" hreflang="en-simple" data-title="John Dee" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/John_Dee" title="John Dee - Slofaceg" lang="sk" hreflang="sk" data-title="John Dee" data-language-autonym="Slovenčina" data-language-local-name="Slofaceg" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/John_Dee" title="John Dee - Slofeneg" lang="sl" hreflang="sl" data-title="John Dee" data-language-autonym="Slovenščina" data-language-local-name="Slofeneg" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%8F%D0%BE%D0%BD_%D0%94%D0%B8" title="Џон Ди - Serbeg" lang="sr" hreflang="sr" data-title="Џон Ди" data-language-autonym="Српски / srpski" data-language-local-name="Serbeg" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/John_Dee" title="John Dee - Swedeg" lang="sv" hreflang="sv" data-title="John Dee" data-language-autonym="Svenska" data-language-local-name="Swedeg" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/John_Dee" title="John Dee - Tyrceg" lang="tr" hreflang="tr" data-title="John Dee" data-language-autonym="Türkçe" data-language-local-name="Tyrceg" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%94%D0%B6%D0%BE%D0%BD_%D0%94%D1%96" title="Джон Ді - Wcreineg" lang="uk" hreflang="uk" data-title="Джон Ді" data-language-autonym="Українська" data-language-local-name="Wcreineg" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%AC%D8%A7%D9%86_%DA%88%DB%8C" title="جان ڈی - Wrdw" lang="ur" hreflang="ur" data-title="جان ڈی" data-language-autonym="اردو" data-language-local-name="Wrdw" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/John_Dee" title="John Dee - Wsbeceg" lang="uz" hreflang="uz" data-title="John Dee" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Wsbeceg" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/John_Dee" title="John Dee - Fietnameg" lang="vi" hreflang="vi" data-title="John Dee" data-language-autonym="Tiếng Việt" data-language-local-name="Fietnameg" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%B4%84%E7%BF%B0%C2%B7%E8%BF%AA%E4%BC%8A" title="約翰·迪伊 - Tsieinëeg" lang="zh" hreflang="zh" data-title="約翰·迪伊" data-language-autonym="中文" data-language-local-name="Tsieinëeg" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q201484#sitelinks-wikipedia" title="Golygu dolenni rhyngwici" class="wbc-editpage">Golygu dolenni</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Parthau"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/John_Dee" title="Gweld y dudalen bwnc [c]" accesskey="c"><span>Erthygl</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Sgwrs:John_Dee" rel="discussion" title="Sgwrsio am y dudalen [t]" accesskey="t"><span>Sgwrs</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Newid amrywiad iaith" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Cymraeg</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Golygon"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/John_Dee"><span>Darllen</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=John_Dee&veaction=edit" title="Golygu'r dudalen hon [v]" accesskey="v"><span>Golygu</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=John_Dee&action=edit" title="Golygu cod ffynhonnell y dudalen hon [e]" accesskey="e"><span>Golygu cod</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=John_Dee&action=history" title="Fersiynau cynt o'r dudalen hon. [h]" accesskey="h"><span>Gweld hanes</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Offer tudalen"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Blwch offer" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Blwch offer</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Blwch offer</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">cuddio</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Rhagor o opsiynau" > <div class="vector-menu-heading"> Gweithredoedd </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/John_Dee"><span>Darllen</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=John_Dee&veaction=edit" title="Golygu'r dudalen hon [v]" accesskey="v"><span>Golygu</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=John_Dee&action=edit" title="Golygu cod ffynhonnell y dudalen hon [e]" accesskey="e"><span>Golygu cod</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=John_Dee&action=history"><span>Gweld hanes</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Cyffredinol </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Arbennig:WhatLinksHere/John_Dee" title="Rhestr o bob tudalen sy'n cysylltu â hon [j]" accesskey="j"><span>Beth sy'n cysylltu yma</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Arbennig:RecentChangesLinked/John_Dee" rel="nofollow" title="Newidiadau diweddar i dudalennau sydd yn cysylltu â hon [k]" accesskey="k"><span>Newidiadau perthnasol</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Arbennig:SpecialPages" title="Rhestr o'r holl dudalennau arbennig [q]" accesskey="q"><span>Tudalennau arbennig</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=John_Dee&oldid=13141694" title="Dolen barhaol i'r fersiwn hwn y dudalen hon"><span>Dolen barhaol</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=John_Dee&action=info" title="Mwy o wybodaeth am y dudalen hon"><span>Gwybodaeth am y dudalen</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Arbennig:CiteThisPage&page=John_Dee&id=13141694&wpFormIdentifier=titleform" title="Gwybodaeth ar sut i gyfeirio at y dudalen hon"><span>Cyfeirio at y dudalen hon</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Arbennig:UrlShortener&url=https%3A%2F%2Fcy.wikipedia.org%2Fwiki%2FJohn_Dee"><span>Cael URL byr</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Arbennig:QrCode&url=https%3A%2F%2Fcy.wikipedia.org%2Fwiki%2FJohn_Dee"><span>Lawrlwytho cod QR</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Argraffu / allforio </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Arbennig:Book&bookcmd=book_creator&referer=John+Dee"><span>Llunio llyfr</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Arbennig:DownloadAsPdf&page=John_Dee&action=show-download-screen"><span>Lawrlwytho fel PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=John_Dee&printable=yes" title="Cynhyrchwch fersiwn o'r dudalen yn barod at ei hargraffu [p]" accesskey="p"><span>Fersiwn argraffu</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Mewn prosiectau eraill </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/John_Dee" hreflang="en"><span>Comin Wikimedia</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q201484" title="Cysylltu i eitem ystorfa gysylltiedig [g]" accesskey="g"><span>Eitem Wicidata</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Offer tudalen"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Gwedd"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Gwedd</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">symud i'r bar ochr</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">cuddio</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Oddi ar Wicipedia</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="cy" dir="ltr"><table class="infobox biography vcard" style="width:22em"><tbody><tr><th colspan="2" style="text-align:center;font-size:125%;font-weight:bold"><span class="fn">John Dee</span></th></tr><tr><td colspan="2" style="text-align:center"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/Delwedd:John_Dee_Ashmolean.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/John_Dee_Ashmolean.jpg/220px-John_Dee_Ashmolean.jpg" decoding="async" width="220" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/40/John_Dee_Ashmolean.jpg/330px-John_Dee_Ashmolean.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/40/John_Dee_Ashmolean.jpg/440px-John_Dee_Ashmolean.jpg 2x" data-file-width="2880" data-file-height="2880" /></a></span><div>John Dee <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></div></td></tr><tr><th scope="row">Ganwyd</th><td>13 Gorffennaf 1527 <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P569" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span><br /><span class="birthplace"><a href="/wiki/Llundain" title="Llundain">Llundain</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P19" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></span></td></tr><tr><th scope="row">Bu farw</th><td>26 Mawrth 1609 <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P570" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span><br /><span class="deathplace"><a href="/wiki/Mortlake" title="Mortlake">Mortlake</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P20" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></span></td></tr><tr><th scope="row"><i>Alma mater</i></th><td><div class="plainlist"><ul style=""><li style=""><a href="/wiki/Coleg_y_Drindod,_Caergrawnt" title="Coleg y Drindod, Caergrawnt">Coleg y Drindod, Caergrawnt</a></li><li style=""><a href="/wiki/Coleg_Sant_Ioan,_Caergrawnt" title="Coleg Sant Ioan, Caergrawnt">Coleg Sant Ioan, Caergrawnt</a></li><li style="">Hen Brifysgol Lefeven <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P69" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div></td></tr><tr><th scope="row">ymgynghorydd y doethor</th><td><div class="plainlist"><ul style=""><li style="">Gemma Frisius</li><li style=""><a href="/wiki/Gerardus_Mercator" title="Gerardus Mercator">Gerardus Mercator</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P184" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div></td></tr><tr><th scope="row">Galwedigaeth</th><td>athronydd, <a href="/wiki/Mathemategydd" title="Mathemategydd">mathemategydd</a>, seryddwr, astroleg, daearyddwr, mapiwr, copïwr <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P106" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Cyflogwr</th><td class="org"><div class="plainlist"><ul style=""><li style=""><a href="/wiki/Prifysgol_Paris" title="Prifysgol Paris">Prifysgol Paris</a></li><li style=""><a href="/wiki/Rudolf_II,_Ymerawdwr_Gl%C3%A2n_Rhufeinig" title="Rudolf II, Ymerawdwr Glân Rhufeinig">Rudolf II, Ymerawdwr Glân Rhufeinig</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P108" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></li></ul></div></td></tr><tr><th scope="row">Adnabyddus am</th><td>Enochian, Enochian magic, <a href="/wiki/Monas_Hieroglyphica" title="Monas Hieroglyphica">Monas Hieroglyphica</a>, De Heptarchia Mystica <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P800" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Tad</th><td>Roland ap Bedo ap Dafydd Ddû ap John Dee <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P22" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Mam</th><td>Jane ferch William Wilde <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P25" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Priod</th><td><a href="/wiki/Jane_Dee" title="Jane Dee">Jane Dee</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P26" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr><tr><th scope="row">Plant</th><td>Arthur Dee <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q201484?uselang=cy#P40" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr></tbody></table> <p>Roedd Dr <b>John Dee</b> (<a href="/wiki/13_Gorffennaf" title="13 Gorffennaf">13 Gorffennaf</a> <a href="/wiki/1527" title="1527">1527</a> – <a href="/wiki/Rhagfyr" title="Rhagfyr">Rhagfyr</a> <a href="/wiki/1608" title="1608">1608</a>) yn <a href="/wiki/Mathemategydd" title="Mathemategydd">fathemategydd</a>, yn <a href="/wiki/Alcemydd" class="mw-redirect" title="Alcemydd">alcemydd</a>, yn <a href="/wiki/Athroniaeth" title="Athroniaeth">athronydd</a>, yn <a href="/wiki/Daearyddiaeth" title="Daearyddiaeth">ddaearyddwr</a>, yn <a href="/wiki/Seryddiaeth" title="Seryddiaeth">seryddwr</a> ac ef oedd 'hoff athronydd' y Frenhines <a href="/wiki/Elisabeth_I,_brenhines_Lloegr" title="Elisabeth I, brenhines Lloegr">Elisabeth I, brenhines Lloegr</a>. Roedd Dee o dras <a href="/wiki/Cymry" title="Cymry">Gymreig</a> a chafodd ei eni yn <a href="/wiki/Llundain" title="Llundain">Llundain</a> ble y bu’n byw gyda’i wraig, <a href="/wiki/Jane_Dee" title="Jane Dee">Jane Dee</a> a'i blant. </p><p>Mae tras Cymreig Dee yn cael ei ddangos yn ei ddyddiaduron ble mae’n sôn yn aml am ei gefndryd Cymreig; un ohonynt oedd Thomas Jones o Dregaron, sy'n fwy adnabyddus fel <a href="/wiki/Twm_Si%C3%B4n_Cati" title="Twm Siôn Cati">Twm Siôn Cati</a>. Cyflwynodd Dee gynlluniau i sefydlu llyfrgell genedlaethol ond nid ariannwyd y cynllun hwnnw felly aeth ati i greu casgliad ei hun. Roedd ei lyfrgell, a oedd yn cynnwys sawl cyfrol yn y Gymraeg, gystal â rhai o lyfrgelloedd prifysgolion y cyfnod, ac o bosib y llyfrgell fwyaf yn <a href="/wiki/Ewrop" title="Ewrop">Ewrop</a> gyfan </p><p>Unodd Dee ddwy wyddor bwysicaf ei gyfnod, sef <a href="/wiki/Dewiniaeth" title="Dewiniaeth">dewiniaeth</a> a <a href="/wiki/Gwyddoniaeth" title="Gwyddoniaeth">gwyddoniaeth</a>. Ar yr adeg pan roedden nhw'n dechrau ffurfio, roedden nhw'n bynciau gwahanol, ac roedd <a href="/wiki/Alcemi" title="Alcemi">alcemi</a>, <a href="/wiki/Astroleg" class="mw-redirect" title="Astroleg">astroleg</a>, a'r <a href="/wiki/Goruwchnaturiol" title="Goruwchnaturiol">goruwchnaturiol</a> yn rhan bwysig o'i waith hefyd. Ystyrir ef fel un o feddylwyr mwyaf ei oes; bu'n darlithio ar <a href="/wiki/Algebra" title="Algebra">algebra</a> ym <a href="/wiki/Paris" title="Paris">Mharis</a> pan oedd yn ei ugeiniau ac roedd yn <a href="/wiki/Mordwyo" title="Mordwyo">fordwywr</a> heb ei ail. Yn y 1580au, wrth annog llongwyr ifanc i geisio darganfod y <i>Northwest Passage</i>, er enghraifft, bathodd y term <i><a href="/wiki/Yr_Ymerodraeth_Brydeinig" title="Yr Ymerodraeth Brydeinig">yr Ymerodraeth Brydeinig</a></i>. </p><p>Credai'n gryf yn <a href="/wiki/Hermes_Trismegistus" title="Hermes Trismegistus">Hermes Trismegistus</a> a 'rheswm pur', purdeb yr <a href="/wiki/Enaid" title="Enaid">enaid</a> a meddyliau <a href="/wiki/Pagan" class="mw-redirect" title="Pagan">Paganaidd</a> deallusol. Treuliodd draean olaf ei oes yn ceisio sgwrsio gydag <a href="/wiki/Angel" title="Angel">angylion</a> gan obeithio deall iaith y Crëwr. </p><p>Roedd yn gynghorydd ac yn athro i Elisabeth I o Loegr a daeth Dee i adnabod dau o'i Phrif Weinidogion; Francis Walsingham a <a href="/wiki/William_Cecil" class="mw-redirect" title="William Cecil">William Cecil</a>. Roedd hefyd yn gyfaill i'r mathemategydd o Gymru <a href="/wiki/Robert_Recorde" title="Robert Recorde">Robert Recorde</a>. </p><p>Cedwir siart achau a baratowyd ar gyfer John Dee yn y <a href="/wiki/Llyfrgell_Brydeinig" title="Llyfrgell Brydeinig">Llyfrgell Brydeinig</a>.<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> Cadwodd y teulu, gan gynnwys John Dee ei hun, gysylltiad agos â'r ardal. </p><p>Ei nod mawr drwy ei fywyd oedd uno'r Pabyddion a'r Protestaniaid ac ail lansio'r cwbl dan gochl hen ddiwinyddiaeth yr oesoedd coll. </p> <figure typeof="mw:File/Frame"><a href="/wiki/Delwedd:DeeHieroglyph.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/cy/c/c2/DeeHieroglyph.gif" decoding="async" width="100" height="200" class="mw-file-element" data-file-width="100" data-file-height="200" /></a><figcaption><a href="/wiki/Glyff" title="Glyff">Glyff</a> personol Dee; esboniodd ei ystyr yn fanwl yn ei lyfr <i><a href="/wiki/Monas_Hieroglyphica" title="Monas Hieroglyphica">Monas Hieroglyphica</a></i>.</figcaption></figure> <p>Mae'r glyff a luniodd yn dangos fod y cosmos cyfan fel un, ac mae'n cynnwys nifer o symbolau astroleg, ond ni wyddom y cyfan am y glyff hwn gan i Dee ysgrifennu'r cwbl mewn cod eithaf cyfrin. </p><p>Roedd Dee yn <a href="/wiki/Ysb%C3%AFwriaeth" title="Ysbïwriaeth">ysbïwr</a> i Elisabeth I yn ôl rhai. Yn hytrach na defnyddio'i lofnod arferol ar ei lythyrau at y frenhines, defnyddiai'r rhifolion "007"; efallai mai oddi yma y cafodd <a href="/wiki/Ian_Fleming" title="Ian Fleming">Ian Fleming</a> y syniad yn ei nofelau am <a href="/wiki/James_Bond" title="James Bond">James Bond</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Bywyd_cynnar">Bywyd cynnar</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=1" title="Golygu'r adran: Bywyd cynnar" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=1" title="Edit section's source code: Bywyd cynnar"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cyrhaeddodd hynafiaid John Dee Lundain yn dilyn coroni <a href="/wiki/Harri_Tudur" class="mw-redirect" title="Harri Tudur">Harri Tudur</a> yn Harri VII.<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> Daw'r enw 'Dee' o'r gair Cymraeg <i>du</i>, gan mai ei daid oedd Bedo Du o Nant-y-groes, <a href="/wiki/Pilalau" title="Pilalau">Pilalau</a>, <a href="/wiki/Sir_Faesyfed" title="Sir Faesyfed">Sir Faesyfed</a>. </p><p> Roedd ei dad Rowland yn ymwneud â defnydd a thecstilau yn llys y brenin <a href="/wiki/Harri_VIII,_brenin_Lloegr" title="Harri VIII, brenin Lloegr">Harri VIII, brenin Lloegr</a>, gan greu dillad ar gyfer y teulu brenhinol, mae'n debyg. Jane Wild oedd enw'i fam a phriododd hi dad John Dee pan oedd hi'n bymtheg oed. Dair blynedd yn ddiweddarach ganwyd John, eu hunig blentyn, yn Tower Ward. Mynychodd Ysgol Babyddol <a href="/wiki/Chelmsford" title="Chelmsford">Chelmsford</a> (ei henw bellach yddi 'King Edward VI Grammar School, Chelmsford'). Rhwng 1543 a 1546, aeth i <a href="/wiki/Coleg_Sant_Ioan,_Caergrawnt" title="Coleg Sant Ioan, Caergrawnt">Goleg Sant Ioan, Caergrawnt</a>. Yn sydyn iawn sylweddolodd ei athrawon fod hwn yn fachgen galluog eithriadol. Cafodd ei wneud yn gymrawd sefydlol ('founding fellow') yng <a href="/wiki/Coleg_y_Drindod,_Caergrawnt" title="Coleg y Drindod, Caergrawnt">Ngholeg y Drindod</a>, <a href="/wiki/Caergrawnt" title="Caergrawnt">Caergrawnt</a> oherwydd ei allu anghyffredin.</p><blockquote><p><i>He was so eager to learn, he later recalled, so "vehemently bent to study", that he worked eighteen hours a day, allowing just four hours for sleep and two for meals. Mathematics was his passion ...</i> ebe Wooley.</p></blockquote> <div class="mw-heading mw-heading2"><h2 id="Ei_waith">Ei waith</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=2" title="Golygu'r adran: Ei waith" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=2" title="Edit section's source code: Ei waith"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Roedd John yn arbenigwr ar fordwyo, a daeth nifer o fforwyr mawr ato am gyngor a gwybodaeth. Roedd ganddo gasgliad enfawr o fapiau ac offer fforio, a dysgodd y pwnc i rai o gapteiniaid gorau'r cyfnod. </p><p>Ar gais Elisabeth, aeth ati i amlinellu hawl Lloegr dros wledydd newydd eu darganfod ac yn eu plith America. Hawliodd mai <a href="/wiki/Madog_ab_Owain_Gwynedd" title="Madog ab Owain Gwynedd">Madog ab Owain Gwynedd</a> a ddarganfu'r cyfandir newydd, a hynny yn 1170. Roedd hawl felly i Loegr goloneiddio'r wlad ymhellach. </p> <div class="mw-heading mw-heading2"><h2 id="Y_cyfrinydd">Y cyfrinydd</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=3" title="Golygu'r adran: Y cyfrinydd" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=3" title="Edit section's source code: Y cyfrinydd"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ym 1555 cafodd John ei arestio. Y cyhuddiad yn ei erbyn oedd iddo greu <i>horosgopau</i> o frenhines Lloegr ar y pryd, sef Mari I a'r Dywysoges Elisabeth.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Cafodd ei holi'n dwll gan yr Esgob (Catholig) Bonner am ei ddaliadau crefyddol ac yn y pen draw cliriwyd ei enw. Roedd yn gwaethygu'r sefyllfa drwy fod mor gyfrin ym mhopeth a wnâi. Taflwyd cyhuddiadau fel hyn ato dro ar ôl tro yn ystod ei oes. </p><p>Pan gafodd Elisabeth ei choroni'n frenhines yn 1558, at Dee ei chynghorydd ffyddlon y trodd am gyngor ac am ddyddiad ar gyfer y coroni.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Ef oedd ei "magus" (gŵr doeth). </p> <div class="mw-heading mw-heading3"><h3 id="Steganographia"><i>Steganographia</i></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=4" title="Golygu'r adran: Steganographia" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=4" title="Edit section's source code: Steganographia"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Delwedd:Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png/220px-Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png" decoding="async" width="220" height="184" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png/330px-Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png/440px-Chart_in_the_hand_of_Dr_John_Dee._Steganographiae.png 2x" data-file-width="889" data-file-height="745" /></a><figcaption>Siart o <i><a href="/wiki/Steganographia" title="Steganographia">Steganographia</a></i> gan Johannes Trithemius yn llaw John Dee, 1591</figcaption></figure><p>Mae gwaith ymchwil diweddar wedi priodoli un o destunau astrolegol y 16g i law Dr John Dee. Teitl y gwaith, a ysgrifennwyd yn wreiddiol mewn <a href="/wiki/Lladin" title="Lladin">Lladin</a> tua diwedd y 1490au gan Johannes Trithemius (1462-1516), oedd <a href="/wiki/Steganographia" title="Steganographia">Steganographia</a>. Cafodd y gwaith hwn ei drawsysgrifio yn 1591 gan Dr John Dee ac roedd gyfrol o destunau astrolegol oedd yn cynnwys 114 tudalen. Ystyr ‘Steganography’ ydi’r broses o ysgrifennu mewn cod cyfrinachol. </p><p>Nid dyma'r unig adysgrif a wnaed gan Dee o'r gwaith hwn. Ar y pryd, roedd galw mawr am y <i>Steganographia</i> dros Ewrop gyfan, ac yn 1563 roedd Dee wedi olrhain copi a oedd ym meddiant uchelwr Hwngaraidd dienw. Teithiodd Dee yn bell iawn er mwyn gwneud adysgrif ohono. Tua diwedd y 1580au, tra’r oedd Dee a'i deulu yn teithio Ewrop, cafodd nifer o gyfrolau o’i lyfrgell eu dwyn. Mae'n debyg ei fod wedi colli ei gopi gwreiddiol o’r <i>Steganographia</i> bryd hynny, ac wedi creu’r adysgrif diweddarach hon yn ei le. </p><p>Yn ddiweddarach, bu’r gyfrol hon yn eiddo i <a href="/wiki/John_Jones,_Gellilyfdy" title="John Jones, Gellilyfdy">John Jones</a>, Gellilyfdy, cyn iddi gyrraedd <a href="/wiki/Robert_Vaughan" title="Robert Vaughan">Robert Vaughan</a> a chasgliad Hengwrt. Yn 1904 roedd y ‘Steganographia’ yn rhan o gasgliad a brynwyd gan <a href="/wiki/John_Williams_(casglwr_llawysgrifau)" title="John Williams (casglwr llawysgrifau)">Syr John Williams</a> ac yn 1909 trosglwyddwyd y llawysgrifau i’r <a href="/wiki/Llyfrgell_Genedlaethol_Cymru" title="Llyfrgell Genedlaethol Cymru">Llyfrgell Genedlaethol</a>. </p><p>Roedd yr awdur wedi defnyddio ffurf glyfar o amgryptio cynnwys y gyfrol ac nid ydym yn gwybod a oedd John Dee yn deall y system hon, nac ychwaith a wnaeth ef ei defnyddio. Roedd hi’n hysbys ei fod wedi defnyddio gwahanol ieithoedd a seifferau yn ei ysgrifau, a byddai codau o'r fath yn sicr yn ddefnyddiol i’w ffrind, Syr Francis Walsingham, a ddatblygodd arbenigedd mewn atal gweithgareddau cudd tra’r oedd yn gweithio fel Ysgrifennydd Preifat i’r Frenhines Elisabeth I. Mae'n ddigon posib bod Dee wedi ei ddenu at y defodau a’r swynion gan ei fod yn credu, fel nifer o’i gyfoedion, bod modd darganfod gwybodaeth drwy sgwrsio gydag ysbrydion.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Mathematical_Preface"><i>Mathematical Preface</i></h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=5" title="Golygu'r adran: Mathematical Preface" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=5" title="Edit section's source code: Mathematical Preface"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ei lyfryn pwysicaf mae'n debyg yw "Mathematical Preface", sef rhagarweiniad i gyfieithiad gan Henry Billingsley o Elfennau gan <a href="/wiki/Euclid" title="Euclid">Euclid</a> yn 1570. Ynddo roedd yn dadlau dros bwysigrwydd mathemateg a'r modd mae mathemateg yn effeithio ac yn dylanwadu ar y celfyddydau a'r gwyddorau eraill.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Mae'n ymddangos bod yr 'erthygl' neu'r llyfryn cyntaf wedi ei anelu at wyddonwyr eraill - a hynny mewn unrhyw iaith. </p><p>Roedd gan John Dee, yn ôl y sôn, y llyfrgell fwyaf ym Mhrydain ac mae’r ffaith ei fod wedi cael ei ddewis i ysgrifennu’r rhagarweiniad yn dangos bod parch uchel iddo. Bu ei waith ym maes mathemateg yn bwysig o ran dangos pa mor ddefnyddiol oedd y pwnc o ddydd i ddydd. Ar yr adeg hon, nid oedd mathemateg ym Mhrydain wedi datblygu i’r un graddau ag yr oedd ar dir mawr Ewrop, ac roedd yn cael ei ystyried fel pwnc oedd yn ddefnyddiol mewn meysydd fel alcemi ac astroleg yn unig. Dangosodd Dee er hynny ei fod yn ddefnyddiol ar gyfer pynciau eraill fel <a href="/wiki/Peirianneg" title="Peirianneg">peirianneg</a> a <a href="/wiki/Hydroleg" title="Hydroleg">hydroleg</a>.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Bywyd_personol">Bywyd personol</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=6" title="Golygu'r adran: Bywyd personol" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=6" title="Edit section's source code: Bywyd personol"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Delwedd:Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg/220px-Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg" decoding="async" width="220" height="232" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg/330px-Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/05/Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg/440px-Edward_Kelly_prophet_or_seer_to_Dr_Dee_02355.jpg 2x" data-file-width="1107" data-file-height="1168" /></a><figcaption>Edward Kelly</figcaption></figure><p>Priododd Dee ddwywaith a chafodd wyth o blant. Parodd y briodas gyntaf o 1565 hyd at farwolaeth ei wraig yn 1576. O 1577 hyd 1601 cadwodd ddyddiadur manwl. Ar 5 Chwefror 1575 priododd <a href="/wiki/Jane_Dee" title="Jane Dee">Jane Fromond</a>; roedd hi'n 21 oed ac yntau'n 51 ar y pryd. Alcemydd oedd ei fab hynaf hefyd, sef Arthur. </p><p>Ysgrifennodd gŵr oedd yn adnabod John Dee yn dda: </p> <blockquote><p><i>"He was tall and slender. He wore a gown like an artist's gown, with hanging sleeves, and a slit.... A very fair, clear sanguine complexion... a long beard as white as milk. A very handsome man."</i></p></blockquote> <p>Roedd Dee'n gefnder i <a href="/wiki/Blanche_Parry" title="Blanche Parry">Blanche Parry</a>, un o gyfeillion mynwesol, <i>Chief Gentlewoman</i> a Cheidwad Tlysau Elisabeth I, brenhines Lloegr. </p> <div class="mw-heading mw-heading2"><h2 id="Angylion_a_rhyw">Angylion a rhyw</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=7" title="Golygu'r adran: Angylion a rhyw" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=7" title="Edit section's source code: Angylion a rhyw"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Delwedd:A_Magician_by_Edward_Kelly.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1b/A_Magician_by_Edward_Kelly.jpg/220px-A_Magician_by_Edward_Kelly.jpg" decoding="async" width="220" height="284" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1b/A_Magician_by_Edward_Kelly.jpg/330px-A_Magician_by_Edward_Kelly.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1b/A_Magician_by_Edward_Kelly.jpg/440px-A_Magician_by_Edward_Kelly.jpg 2x" data-file-width="987" data-file-height="1275" /></a><figcaption>Llun dau ddewin ac angel gan Edward Kelly</figcaption></figure><p>Mae dyddiaduron John yn llawn disgrifiadau manwl a chofnodir ynddynt <a href="/wiki/Misglwyf" class="mw-redirect" title="Misglwyf">fisglwyf</a> Jane, eu <a href="/wiki/Cyfathrach_rywiol" title="Cyfathrach rywiol">cyfathrach rywiol</a> a genedigaethau eu plant. Cofnodir, mewn un, erthyliad un o'r babanod, er mwyn i John ddeall y broses o <a href="/w/index.php?title=Cenhedlu&action=edit&redlink=1" class="new" title="Cenhedlu (dim tudalen ar gael)">genhedlu</a>'n well.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </p><p>Yn 1582, dechreuodd John gyfathrebu ag 'angylion' gyda chydweithiwr a chyfaill iddo, sef <a href="/w/index.php?title=Edward_Kelley&action=edit&redlink=1" class="new" title="Edward Kelley (dim tudalen ar gael)">Edward Kelly</a> (<i>alias</i> Talbot). Doedd gan Jane fawr o feddwl o Kelly o'r cychwyn a chofnodir drwgdeimlad y ddau at ei gilydd gan John. Pan briododd Kelly ferch ifanc o'r enw Joanna Cooper, fe'i hesgeuluodd hi, a daeth drwgdeimlad Jane yn atgasedd pur at Kelly. Roedd ei chydymdeimlad llwyr gyda Joanna.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p><p> Yn 1585, gofynnodd Jane i Kelly am gymorth er mwyn iddi gynnal sgwrs gyda'r angylion. Gofynnodd i'r angylion am gymorth ariannol, gan nad ganddynt lawer o arian. Yn ôl John Dee, gofynnodd Jane:</p><center> <i>We desire, God, of his greate and infinite mercies to grant us the helpe of His hevenly mynisters, that we Mai by them be directed how or by whom to be ayded and released in this neccessitie for meate and drinke for us and for our familie, wherewith we stand at this instant much oppressed.</i><sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup></center> <p>Yn 1587 pan roedd y ddau deulu'n byw yn <a href="/w/index.php?title=T%C5%99ebo%C5%88&action=edit&redlink=1" class="new" title="Třeboň (dim tudalen ar gael)">Třeboň</a>, yn yr hyn a elwir heddiw yn <a href="/wiki/Y_Weriniaeth_Tsiec" class="mw-redirect" title="Y Weriniaeth Tsiec">Weriniaeth Tsiec</a>, honodd Kelly fod yr angylion 'Madimi' ac 'Ill' wedi ei hysbysu y dylai'r ddau gwpwl gyfnewid gwragedd. Ar y cychwyn, gwrthwynebodd John yn hallt, ond newidiodd ei feddwl oherwydd dyfalbarhad yr angylion (drwy Talbot). Pan hysbysodd John ei wraig, 'disgynnodd hi i'r llawr yn llefain ac mewn gwewyr o gryndod am chwarter awr'. Fe'i darbwyllwyd gan John, pan fynnodd ef mai hyn oedd ewyllys Duw, ac y dylai'r ddau ddyn rannu'r cyfan a oedd ganddynt. Arwyddodd y ddau gwpwl gytundeb, cyfnewidiwyd partneriaid a chafwyd cyfathrach rywiol. </p> <div class="mw-heading mw-heading2"><h2 id="Heddiw">Heddiw</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=8" title="Golygu'r adran: Heddiw" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=8" title="Edit section's source code: Heddiw"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cafodd tŷ John (a oedd ym <a href="/wiki/Mortlake" title="Mortlake">Mortlake</a>, <a href="/wiki/Surrey" title="Surrey">Surrey</a>) ei losgi gan y trigolion lleol yn 1583. Bu farw ei wraig a nifer o'i blant ym 1605 a hynny o'r <a href="/wiki/Pla_Du" title="Pla Du">Pla Du</a>. Ym 1608, bu farw John yn 81 mlwydd oed a chafodd ei gladdu ym mynwent Eglwys Mortlake. Nid oes carreg yno i'w gofio. Mae fel petai wedi diflannu o wyneb y ddaear. Tynnwyd yr hen dŷ i lawr ar ôl iddo farw a chodwyd 'The Mortlake Tapestry Works' ar y tir ym 1619. Cafodd yr adeilad hwn ei ddymchwel ym 1951 a saif carreg i goffau'r lle; ond nid oes gair am y Dewin John Dee yno. </p> <div class="mw-heading mw-heading2"><h2 id="Cyfeiriadau">Cyfeiriadau</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=9" title="Golygu'r adran: Cyfeiriadau" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=9" title="Edit section's source code: Cyfeiriadau"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">Ni wyddom pwy yw'r arlunydd. Yn ôl Charlotte Fell Smith, dyma lun o John Dee pan oedd yn 67 oed. Cafodd ei basio i lawr i'w ŵyr sef Rowland Dee ac yna'n ddiweddarach i Elias Ashmole, a adawodd y llun i Brifysgol Rhydychen.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="https://www.bl.uk/collection-items/john-dees-genealogy-and-self-portrait">John Dee's genealogy and self-portrait</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20201222061931/https://www.bl.uk/collection-items/john-dees-genealogy-and-self-portrait">Archifwyd</a> 2020-12-22 yn y <a href="/wiki/Peiriant_Wayback" title="Peiriant Wayback">Peiriant Wayback</a>; adalwyd 14 Gorffennaf 2019.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://yba.llgc.org.uk/en/s-DEE0-JOH-1527.html?query=rhodri&field=content"></a><a href="/wiki/Llyfrgell_Genedlaethol_Cymru" title="Llyfrgell Genedlaethol Cymru">Llyfrgell Genedlaethol Cymru</a>; adalwyd 28 Tachwedd 2015</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text">Fell Smith, Charlotte (1909). John Dee: 1527–1608. London: Constable and Company.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text">John Dee and the English Calendar: Science, Religion and Empire gan Dr. Robert Poole. Cyhoeddwyd gan Institute of Historical Research, 2005</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text">John Dee and Early Modern Occult Philosophy, cyfrol 1, 2004</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20200806125302/https://www.llyfrgell.cymru/darganfod/oriel-ddigidol/llawysgrifau/cyfnod-modern-cynnar/steganographia/#?c=&m=&s=&cv=&xywh=-574,0,4926,4865">"Steganographia | Llyfrgell Genedlaethol Cymru"</a>. <i>www.llyfrgell.cymru</i>. Archifwyd o'r <a rel="nofollow" class="external text" href="https://www.llyfrgell.cymru/darganfod/oriel-ddigidol/llawysgrifau/cyfnod-modern-cynnar/steganographia#?c=&m=&s=&cv=&xywh=-574,0,4926,4865">gwreiddiol</a> ar 2020-08-06<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">2020-05-22</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=www.llyfrgell.cymru&rft.atitle=Steganographia+%7C+Llyfrgell+Genedlaethol+Cymru&rft_id=https%3A%2F%2Fwww.llyfrgell.cymru%2Fdarganfod%2Foriel-ddigidol%2Fllawysgrifau%2Fcyfnod-modern-cynnar%2Fsteganographia%23%3Fc%3D%26m%3D%26s%3D%26cv%3D%26xywh%3D-574%2C0%2C4926%2C4865&rfr_id=info%3Asid%2Fcy.wikipedia.org%3AJohn+Dee" class="Z3988"></span><style data-mw-deduplicate="TemplateStyles:r8312344">.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}</style></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a></span> <span class="reference-text">John Dee (1527–1608): Alchemy — the Beginnings of Chemistry.</span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><a href="#cite_ref-9">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://blog.library.wales/euclids-elements-with-a-preface-by-john-dee/">"Euclid's Elements"</a>. <i>National Library of Wales Blog</i> (yn Saesneg). 2018-07-09<span class="reference-accessdate">. Cyrchwyd <span class="nowrap">2020-05-22</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=National+Library+of+Wales+Blog&rft.atitle=Euclid%27s+Elements&rft.date=2018-07-09&rft_id=https%3A%2F%2Fblog.library.wales%2Feuclids-elements-with-a-preface-by-john-dee%2F&rfr_id=info%3Asid%2Fcy.wikipedia.org%3AJohn+Dee" class="Z3988"></span><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r8312344"></span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><a href="#cite_ref-10">↑</a></span> <span class="reference-text">Harkness, tud.256</span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><a href="#cite_ref-11">↑</a></span> <span class="reference-text">Susan Bassnett, 'Absent Presences: Edward Kelley's Family in the Writings of John Dee' in Stephen Clucas (ed.), <i>John Dee: Interdisciplinary Studies in English Renaissance Thought</i> (Dordrecht, 2006), pp 227-8</span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><a href="#cite_ref-12">↑</a></span> <span class="reference-text">Deacon, p. 192</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Gweler_hefyd">Gweler hefyd</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=John_Dee&veaction=edit&section=10" title="Golygu'r adran: Gweler hefyd" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=John_Dee&action=edit&section=10" title="Edit section's source code: Gweler hefyd"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Arise_Evans" class="mw-redirect" title="Arise Evans">Arise Evans</a></li> <li><a href="/wiki/Y_Dewin_Du" title="Y Dewin Du">Y Dewin Du</a> - cyfrol diweddar ar Dee</li></ul> <div role="navigation" class="navbox" aria-labelledby="AwdurdodCategory:AC_with_17_elements" style="padding:3px"><table class="nowraplinks hlist navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th id="AwdurdodCategory:AC_with_17_elements" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Awdurdod" class="mw-redirect" title="Awdurdod">Awdurdod</a></th><td class="navbox-list navbox-odd" style="text-align:left;border-left-width:2px;border-left-style:solid;width:100%;padding:0px"><div style="padding:0em 0.25em"> <ul><li><a rel="nofollow" class="external text" href="//www.worldcat.org/identities/lccn-n79-006490">WorldCat</a></li> <li><a href="/wiki/Y_Bywgraffiadur_Cymreig" title="Y Bywgraffiadur Cymreig">YBC</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://bywgraffiadur.cymru/article/c-DEE0-JOH-1527">Y Bywgraffiadur Cymreig</a> </span></li> <li><a href="/wiki/Virtual_International_Authority_File" class="mw-redirect" title="Virtual International Authority File">VIAF</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://viaf.org/viaf/39386049">39386049</a></span></li> <li><a href="/wiki/Library_of_Congress_Control_Number" class="mw-redirect" title="Library of Congress Control Number">LCCN</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://id.loc.gov/authorities/names/n79006490">n79006490</a></span></li> <li><a href="/wiki/International_Standard_Name_Identifier" class="mw-redirect" title="International Standard Name Identifier">ISNI</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://isni.org/0000000122785193">0000 0001 2278 5193</a></span></li> <li><a href="/wiki/Integrated_Authority_File" class="mw-redirect" title="Integrated Authority File">GND</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://d-nb.info/gnd/118679139">118679139</a></span></li> <li><a href="/wiki/LIBRIS" title="LIBRIS">SELIBR</a>: <span class="uid"><a rel="nofollow" class="external text" href="//libris.kb.se/auth/350283">350283</a></span></li> <li><a href="/wiki/Syst%C3%A8me_universitaire_de_documentation" title="Système universitaire de documentation">SUDOC</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://www.idref.fr/02739557X">02739557X</a></span></li> <li><a href="/wiki/Biblioth%C3%A8que_nationale_de_France" title="Bibliothèque nationale de France">BNF</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://catalogue.bnf.fr/ark:/12148/cb119854464">cb119854464</a> <a rel="nofollow" class="external text" href="http://data.bnf.fr/ark:/12148/cb119854464">(data)</a></span></li> <li><a href="/wiki/BIBSYS" class="mw-redirect" title="BIBSYS">BIBSYS</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://ask.bibsys.no/ask/action/result?cmd=&kilde=biblio&cql=bs.autid+%3D+90390606&feltselect=bs.autid">90390606</a></span></li> <li><a href="/w/index.php?title=Mathematics_Genealogy_Project&action=edit&redlink=1" class="new" title="Mathematics Genealogy Project (dim tudalen ar gael)">MGP</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://www.genealogy.ams.org/id.php?id=119224">119224</a></span></li> <li><a href="/wiki/National_Library_of_Australia" class="mw-redirect" title="National Library of Australia">NLA</a>: <span class="uid"><a rel="nofollow" class="external text" href="//nla.gov.au/anbd.aut-an35034523">35034523</a></span></li> <li><a href="/wiki/National_Diet_Library" class="mw-redirect" title="National Diet Library">NDL</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://id.ndl.go.jp/auth/ndlna/00620569">00620569</a></span></li> <li><a href="/wiki/National_Library_of_the_Czech_Republic" class="mw-redirect" title="National Library of the Czech Republic">NKC</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=jn20000720057&CON_LNG=ENG">jn20000720057</a></span></li> <li><span class="error">The SBN id CFIV014156 is not valid.</span></li> <li><a href="/wiki/Biblioteca_Nacional_de_Espa%C3%B1a" title="Biblioteca Nacional de España">BNE</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://catalogo.bne.es/uhtbin/authoritybrowse.cgi?action=display&authority_id=XX984413">XX984413</a></span></li> <li><a href="/w/index.php?title=CiNii&action=edit&redlink=1" class="new" title="CiNii (dim tudalen ar gael)">CiNii</a>: <span class="uid"><a rel="nofollow" class="external text" href="http://ci.nii.ac.jp/author/DA02139533?l=en">DA02139533</a></span></li> <li><a href="/wiki/Bywgraffiadur_Cenedlaethol_Geiriadur_Rhydychen" class="mw-redirect" title="Bywgraffiadur Cenedlaethol Geiriadur Rhydychen">ODNB</a>: <span class="uid"><a rel="nofollow" class="external text" href="https://doi.org/10.1093/ref:odnb/7418">Bywgraffiadur Cenedlaethol Geiriadur Rhydychen</a> (<a rel="nofollow" class="external text" href="http://global.oup.com/oxforddnb/info/freeodnb/libraries/">Mynediad llyfrgelloedd cyhoeddus</a>) </span></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="">Wedi dod o "<a dir="ltr" href="https://cy.wikipedia.org/w/index.php?title=John_Dee&oldid=13141694">https://cy.wikipedia.org/w/index.php?title=John_Dee&oldid=13141694</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Arbennig:Categories" title="Arbennig:Categories">Categorïau</a>: <ul><li><a href="/wiki/Categori:Alcemi" title="Categori:Alcemi">Alcemi</a></li><li><a href="/wiki/Categori:Cyfrinwyr" title="Categori:Cyfrinwyr">Cyfrinwyr</a></li><li><a href="/wiki/Categori:Cymry_Llundain" title="Categori:Cymry Llundain">Cymry Llundain</a></li><li><a href="/wiki/Categori:Daearyddwyr" title="Categori:Daearyddwyr">Daearyddwyr</a></li><li><a href="/wiki/Categori:Genedigaethau_1527" title="Categori:Genedigaethau 1527">Genedigaethau 1527</a></li><li><a href="/wiki/Categori:Llenorion_yr_ocwlt" title="Categori:Llenorion yr ocwlt">Llenorion yr ocwlt</a></li><li><a href="/wiki/Categori:Llenorion_Saesneg" title="Categori:Llenorion Saesneg">Llenorion Saesneg</a></li><li><a href="/wiki/Categori:Marwolaethau_1608" title="Categori:Marwolaethau 1608">Marwolaethau 1608</a></li><li><a href="/wiki/Categori:Mathemategwyr_o_Gymru" title="Categori:Mathemategwyr o Gymru">Mathemategwyr o Gymru</a></li><li><a href="/wiki/Categori:Seryddwyr" title="Categori:Seryddwyr">Seryddwyr</a></li><li><a href="/wiki/Categori:Pobl_o_Oes_y_Tuduriaid" title="Categori:Pobl o Oes y Tuduriaid">Pobl o Oes y Tuduriaid</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categori cudd: <ul><li><a href="/wiki/Categori:Pages_using_the_JsonConfig_extension" title="Categori:Pages using the JsonConfig extension">Pages using the JsonConfig extension</a></li><li><a href="/wiki/Categori:Webarchive_template_wayback_links" title="Categori:Webarchive template wayback links">Webarchive template wayback links</a></li><li><a href="/wiki/Categori:CS1_Saesneg-language_sources_(en)" title="Categori:CS1 Saesneg-language sources (en)">CS1 Saesneg-language sources (en)</a></li><li><a href="/wiki/Categori:Articles_with_hCards" title="Categori:Articles with hCards">Articles with hCards</a></li><li><a href="/wiki/Categori:Erthyglau_sy%27n_defnyddio_Nodyn_Gwybodlen_person_Wicidata" title="Categori:Erthyglau sy'n defnyddio Nodyn Gwybodlen person Wicidata">Erthyglau sy'n defnyddio Nodyn Gwybodlen person Wicidata</a></li><li><a href="/wiki/Categori:AC_with_17_elements" title="Categori:AC with 17 elements">AC with 17 elements</a></li><li><a href="/wiki/Categori:Dalennau_gyda_gwybodaeth_am_Reolaeth_Awdurdod" title="Categori:Dalennau gyda gwybodaeth am Reolaeth Awdurdod">Dalennau gyda gwybodaeth am Reolaeth Awdurdod</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_VIAF_identifiers" title="Categori:Wikipedia articles with VIAF identifiers">Wikipedia articles with VIAF identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_LCCN_identifiers" title="Categori:Wikipedia articles with LCCN identifiers">Wikipedia articles with LCCN identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_ISNI_identifiers" title="Categori:Wikipedia articles with ISNI identifiers">Wikipedia articles with ISNI identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_GND_identifiers" title="Categori:Wikipedia articles with GND identifiers">Wikipedia articles with GND identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_SELIBR_identifiers" title="Categori:Wikipedia articles with SELIBR identifiers">Wikipedia articles with SELIBR identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_BNF_identifiers" title="Categori:Wikipedia articles with BNF identifiers">Wikipedia articles with BNF identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_BIBSYS_identifiers" title="Categori:Wikipedia articles with BIBSYS identifiers">Wikipedia articles with BIBSYS identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_NLA_identifiers" title="Categori:Wikipedia articles with NLA identifiers">Wikipedia articles with NLA identifiers</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_faulty_authority_control_identifiers_(SBN)" title="Categori:Wikipedia articles with faulty authority control identifiers (SBN)">Wikipedia articles with faulty authority control identifiers (SBN)</a></li><li><a href="/wiki/Categori:Wikipedia_articles_with_ODNB_identifiers" title="Categori:Wikipedia articles with ODNB identifiers">Wikipedia articles with ODNB identifiers</a></li><li><a href="/wiki/Categori:Prosiect_WiciAddysg" title="Categori:Prosiect WiciAddysg">Prosiect WiciAddysg</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Golygwyd y dudalen hon ddiwethaf ar 9 Hydref 2024, am 15:25.</li> <li id="footer-info-copyright">Mae'r testun ar gael o dan <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-ShareAlike License</a>; gall telerau ychwanegol fod yn berthnasol. Gweler y <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Telerau Gwasanaeth</a> am fanylion.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Polisi preifatrwydd</a></li> <li id="footer-places-about"><a href="/wiki/Wicipedia:Yngl%C5%B7n_%C3%A2_Wicipedia">Ynglŷn â Wicipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wicipedia:Gwadiad_Cyffredinol">Gwadiadau</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Cod Ymddygiad</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Datblygwyr</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/cy.wikipedia.org">Ystadegau</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Datganiad cwcis</a></li> <li id="footer-places-mobileview"><a href="//cy.m.wikipedia.org/w/index.php?title=John_Dee&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Golwg symudol</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-669b4ddb54-bzc2v","wgBackendResponseTime":133,"wgPageParseReport":{"limitreport":{"cputime":"0.354","walltime":"0.489","ppvisitednodes":{"value":2779,"limit":1000000},"postexpandincludesize":{"value":37060,"limit":2097152},"templateargumentsize":{"value":4782,"limit":2097152},"expansiondepth":{"value":12,"limit":100},"expensivefunctioncount":{"value":1,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":10595,"limit":5000000},"entityaccesscount":{"value":1,"limit":400},"timingprofile":["100.00% 418.256 1 -total"," 72.27% 302.281 1 Nodyn:Person"," 65.40% 273.550 1 Nodyn:Infobox"," 21.94% 91.783 5 Nodyn:Br_separated_entries"," 19.56% 81.790 1 Nodyn:Cyfeiriadau"," 14.88% 62.238 2 Nodyn:Cite_web"," 6.70% 28.013 1 Nodyn:Rheoli_awdurdod"," 3.22% 13.447 1 Nodyn:Wikidata_image"," 3.12% 13.052 4 Nodyn:If_empty"," 2.57% 10.739 1 Nodyn:Webarchive"]},"scribunto":{"limitreport-timeusage":{"value":"0.204","limit":"10.000"},"limitreport-memusage":{"value":5158467,"limit":52428800}},"cachereport":{"origin":"mw-api-int.codfw.main-5fd4fc67fd-hnrb2","timestamp":"20241104220028","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"John Dee","url":"https:\/\/cy.wikipedia.org\/wiki\/John_Dee","sameAs":"http:\/\/www.wikidata.org\/entity\/Q201484","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q201484","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2004-05-19T21:19:46Z","dateModified":"2024-10-09T15:25:30Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/4\/40\/John_Dee_Ashmolean.jpg","headline":"mathemategydd, mesuronydd a seryddwr"}</script> </body> </html>