CINXE.COM
Cymru a Lloegr - Wicipedia
<!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>Cymru a Lloegr - 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":"635a6afd-02e1-47fc-a0e2-2cc237286e8b","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Cymru_a_Lloegr","wgTitle":"Cymru a Lloegr","wgCurRevisionId":11767600,"wgRevisionId":11767600,"wgArticleId":44450,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["Erthyglau sy'n cynnwys testun Saesneg","Cyfraith Cymru","Cyfraith Lloegr","Gwleidyddiaeth Cymru","Gwleidyddiaeth Lloegr"],"wgPageViewLanguage":"cy","wgPageContentLanguage":"cy","wgPageContentModel":"wikitext","wgRelevantPageName":"Cymru_a_Lloegr","wgRelevantArticleId":44450,"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":4000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q1156248","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","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/b/b6/England_and_Wales_within_the_UK_and_Europe.svg/1200px-England_and_Wales_within_the_UK_and_Europe.svg.png"> <meta property="og:image:width" content="1200"> <meta property="og:image:height" content="918"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/England_and_Wales_within_the_UK_and_Europe.svg/800px-England_and_Wales_within_the_UK_and_Europe.svg.png"> <meta property="og:image:width" content="800"> <meta property="og:image:height" content="612"> <meta property="og:image" content="https://upload.wikimedia.org/wikipedia/commons/thumb/b/b6/England_and_Wales_within_the_UK_and_Europe.svg/640px-England_and_Wales_within_the_UK_and_Europe.svg.png"> <meta property="og:image:width" content="640"> <meta property="og:image:height" content="489"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Cymru a Lloegr - 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/Cymru_a_Lloegr"> <link rel="alternate" type="application/x-wiki" title="Golygu" href="/w/index.php?title=Cymru_a_Lloegr&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/Cymru_a_Lloegr"> <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-Cymru_a_Lloegr rootpage-Cymru_a_Lloegr 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=Cymru+a+Lloegr" 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=Cymru+a+Lloegr" 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=Cymru+a+Lloegr" 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=Cymru+a+Lloegr" 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"><!-- CentralNotice --></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-Y_ddadl_dros_awdurdodaeth_ar_wahân_i_Gymru" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Y_ddadl_dros_awdurdodaeth_ar_wahân_i_Gymru"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Y ddadl dros awdurdodaeth ar wahân i Gymru</span> </div> </a> <ul id="toc-Y_ddadl_dros_awdurdodaeth_ar_wahân_i_Gymru-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">2</span> <span>Gweler hefyd</span> </div> </a> <ul id="toc-Gweler_hefyd-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">3</span> <span>Cyfeiriadau</span> </div> </a> <ul id="toc-Cyfeiriadau-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">Cymru a Lloegr</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 25 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-25" 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">25 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%A5%D9%86%D8%AC%D9%84%D8%AA%D8%B1%D8%A7_%D9%88%D9%88%D9%8A%D9%84%D8%B2" title="إنجلترا وويلز - Arabeg" lang="ar" hreflang="ar" data-title="إنجلترا وويلز" data-language-autonym="العربية" data-language-local-name="Arabeg" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/%C4%B0ngilt%C9%99r%C9%99_v%C9%99_Uels" title="İngiltərə və Uels - Aserbaijaneg" lang="az" hreflang="az" data-title="İngiltərə və Uels" data-language-autonym="Azərbaycanca" data-language-local-name="Aserbaijaneg" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/England_og_Wales" title="England og Wales - Daneg" lang="da" hreflang="da" data-title="England og Wales" 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/England_und_Wales" title="England und Wales - Almaeneg" lang="de" hreflang="de" data-title="England und Wales" data-language-autonym="Deutsch" data-language-local-name="Almaeneg" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/England_and_Wales" title="England and Wales - Saesneg" lang="en" hreflang="en" data-title="England and Wales" data-language-autonym="English" data-language-local-name="Saesneg" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Inglaterra_y_Gales" title="Inglaterra y Gales - Sbaeneg" lang="es" hreflang="es" data-title="Inglaterra y Gales" data-language-autonym="Español" data-language-local-name="Sbaeneg" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Englanti_ja_Wales" title="Englanti ja Wales - Ffinneg" lang="fi" hreflang="fi" data-title="Englanti ja Wales" 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/Angleterre-et-Galles" title="Angleterre-et-Galles - Ffrangeg" lang="fr" hreflang="fr" data-title="Angleterre-et-Galles" data-language-autonym="Français" data-language-local-name="Ffrangeg" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Inggris_dan_Wales" title="Inggris dan Wales - Indoneseg" lang="id" hreflang="id" data-title="Inggris dan Wales" 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/Inghilterra_e_Galles" title="Inghilterra e Galles - Eidaleg" lang="it" hreflang="it" data-title="Inghilterra e Galles" 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%A4%E3%83%B3%E3%82%B0%E3%83%A9%E3%83%B3%E3%83%89%E3%81%8A%E3%82%88%E3%81%B3%E3%82%A6%E3%82%A7%E3%83%BC%E3%83%AB%E3%82%BA" title="イングランドおよびウェールズ - Japaneeg" lang="ja" hreflang="ja" data-title="イングランドおよびウェールズ" 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-kbd mw-list-item"><a href="https://kbd.wikipedia.org/wiki/%D0%98%D0%BD%D0%B4%D0%B6%D1%8B%D0%BB%D1%8B%D0%B7%D1%80%D1%8D_%D0%A3%D0%B5%D0%BB%D1%81%D1%80%D1%8D" title="Инджылызрэ Уелсрэ - Cabardieg" lang="kbd" hreflang="kbd" data-title="Инджылызрэ Уелсрэ" data-language-autonym="Адыгэбзэ" data-language-local-name="Cabardieg" class="interlanguage-link-target"><span>Адыгэбзэ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%9E%89%EA%B8%80%EB%9E%9C%EB%93%9C_%EC%9B%A8%EC%9D%BC%EC%8A%A4" title="잉글랜드 웨일스 - Coreeg" lang="ko" hreflang="ko" data-title="잉글랜드 웨일스" data-language-autonym="한국어" data-language-local-name="Coreeg" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/England_dan_Wales" title="England dan Wales - Maleieg" lang="ms" hreflang="ms" data-title="England dan Wales" data-language-autonym="Bahasa Melayu" data-language-local-name="Maleieg" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Engeland_en_Wales" title="Engeland en Wales - Iseldireg" lang="nl" hreflang="nl" data-title="Engeland en Wales" 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/England_og_Wales" title="England og Wales - Norwyeg Nynorsk" lang="nn" hreflang="nn" data-title="England og Wales" 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/England_og_Wales" title="England og Wales - Norwyeg Bokmål" lang="nb" hreflang="nb" data-title="England og Wales" 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-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Inglaterra_e_Gales" title="Inglaterra e Gales - Portiwgaleg" lang="pt" hreflang="pt" data-title="Inglaterra e Gales" data-language-autonym="Português" data-language-local-name="Portiwgaleg" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%BD%D0%B3%D0%BB%D0%B8%D1%8F_%D0%B8_%D0%A3%D1%8D%D0%BB%D1%8C%D1%81" title="Англия и Уэльс - Rwseg" lang="ru" hreflang="ru" data-title="Англия и Уэльс" data-language-autonym="Русский" data-language-local-name="Rwseg" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/England_och_Wales" title="England och Wales - Swedeg" lang="sv" hreflang="sv" data-title="England och Wales" 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/%C4%B0ngiltere_ve_Galler" title="İngiltere ve Galler - Tyrceg" lang="tr" hreflang="tr" data-title="İngiltere ve Galler" 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%90%D0%BD%D0%B3%D0%BB%D1%96%D1%8F_%D0%B9_%D0%A3%D0%B5%D0%BB%D1%8C%D1%81" title="Англія й Уельс - Wcreineg" lang="uk" hreflang="uk" data-title="Англія й Уельс" 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%A7%D9%86%DA%AF%D9%84%D8%B3%D8%AA%D8%A7%D9%86_%D8%A7%D9%88%D8%B1_%D9%88%DB%8C%D9%84%D8%B2" title="انگلستان اور ویلز - Wrdw" lang="ur" hreflang="ur" data-title="انگلستان اور ویلز" data-language-autonym="اردو" data-language-local-name="Wrdw" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Anh_v%C3%A0_Wales" title="Anh và Wales - Fietnameg" lang="vi" hreflang="vi" data-title="Anh và Wales" 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/%E8%8B%B1%E6%A0%BC%E5%85%B0%E5%92%8C%E5%A8%81%E5%B0%94%E5%A3%AB" title="英格兰和威尔士 - Tsieinëeg" lang="zh" hreflang="zh" data-title="英格兰和威尔士" 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/Q1156248#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/Cymru_a_Lloegr" 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:Cymru_a_Lloegr" 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/Cymru_a_Lloegr"><span>Darllen</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Cymru_a_Lloegr&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=Cymru_a_Lloegr&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=Cymru_a_Lloegr&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/Cymru_a_Lloegr"><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=Cymru_a_Lloegr&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=Cymru_a_Lloegr&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=Cymru_a_Lloegr&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/Cymru_a_Lloegr" 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/Cymru_a_Lloegr" 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=Cymru_a_Lloegr&oldid=11767600" 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=Cymru_a_Lloegr&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=Cymru_a_Lloegr&id=11767600&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%2FCymru_a_Lloegr"><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%2FCymru_a_Lloegr"><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=Cymru+a+Lloegr"><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=Cymru_a_Lloegr&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=Cymru_a_Lloegr&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/Category:England_and_Wales" 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/Q1156248" 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"><figure typeof="mw:File/Thumb"><a href="/wiki/Delwedd:England_and_Wales_within_the_UK_and_Europe.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/England_and_Wales_within_the_UK_and_Europe.svg/300px-England_and_Wales_within_the_UK_and_Europe.svg.png" decoding="async" width="300" height="229" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/England_and_Wales_within_the_UK_and_Europe.svg/450px-England_and_Wales_within_the_UK_and_Europe.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b6/England_and_Wales_within_the_UK_and_Europe.svg/600px-England_and_Wales_within_the_UK_and_Europe.svg.png 2x" data-file-width="680" data-file-height="520" /></a><figcaption>Map o Gymru a Lloegr (gwyrdd tywyll) o fewn y Deyrnas Unedig (gwyrdd golau).</figcaption></figure> <p><a href="/wiki/Awdurdodaeth_gyfreithiol" class="mw-redirect" title="Awdurdodaeth gyfreithiol">Awdurdodaeth gyfreithiol</a> o fewn <a href="/wiki/Y_Deyrnas_Unedig" title="Y Deyrnas Unedig">y Deyrnas Unedig</a> yw <b>Cymru a Lloegr</b> (<a href="/wiki/Saesneg" title="Saesneg">Saesneg</a>: <span lang="en"><i>England and Wales</i></span>) sydd yn cyfateb i diriogaeth <a href="/wiki/Cymru" title="Cymru">Cymru</a> a <a href="/wiki/Lloegr" title="Lloegr">Lloegr</a>, dwy o <a href="/wiki/Gwledydd_y_Deyrnas_Unedig" title="Gwledydd y Deyrnas Unedig">wledydd y Deyrnas Unedig</a> sydd yn atebol i <a href="/w/index.php?title=Cyfraith_Lloegr&action=edit&redlink=1" class="new" title="Cyfraith Lloegr (dim tudalen ar gael)">gyfraith Lloegr</a>. Hon yw un o dair awdurdodaeth y Deyrnas Unedig; y ddwy arall yw'r <a href="/wiki/Alban" class="mw-redirect" title="Alban">Alban</a>, sydd yn atebol i gyfraith yr Alban, a <a href="/wiki/Gogledd_Iwerddon" title="Gogledd Iwerddon">Gogledd Iwerddon</a>, sydd yn atebol i gyfraith Gogledd Iwerddon. Cymru a Lloegr ydy'r unig awdurdodaeth gyfreithiol yn y byd sydd yn cynnwys dwy ar wahân, sef <a href="/wiki/Senedd_Cymru" title="Senedd Cymru">Senedd Cymru</a> a <a href="/wiki/Senedd_y_Deyrnas_Unedig" title="Senedd y Deyrnas Unedig">Senedd y Deyrnas Unedig</a> (San Steffan); a Chymru ydy'r unig wlad yn y byd sydd yn meddu ar <a href="/wiki/Deddfwrfa" title="Deddfwrfa">ddeddfwrfa</a> ond sydd heb awdurdodaeth ei hun. </p><p>Cyflwynwyd <a href="/wiki/Y_gyfraith_gyffredin" class="mw-redirect" title="Y gyfraith gyffredin">y gyfraith gyffredin</a> o Loegr i Gymru yn sgil <a href="/wiki/Deddfau%27r_Cyfreithiau_yng_Nghymru_1536_a_1542" title="Deddfau'r Cyfreithiau yng Nghymru 1536 a 1542">Deddf y Cyfreithiau yng Nghymru 1536</a> a gyfeddiannai Cymru yn rhan o <a href="/wiki/Teyrnas_Lloegr" title="Teyrnas Lloegr">Deyrnas Lloegr</a>. Diddymwyd y gyfraith sifil Gymreig, yr agwedd olaf o <a href="/wiki/Cyfraith_Hywel" title="Cyfraith Hywel">gyfraith Hywel</a> a oedd mewn grym, a daeth Cymru dan diriogaeth farnwrol Cylchdro Cymru a Chaer. Dyna oedd y drefn am bum can mlynedd bron, nes i <a href="/wiki/Deddf_Llywodraeth_Cymru_2006" title="Deddf Llywodraeth Cymru 2006">Ddeddf Llywodraeth Cymru 2006</a> ddarparu modd i San Steffan drosglwyddo pwerau i <a href="/wiki/Cynulliad_Cenedlaethol_Cymru" class="mw-redirect" title="Cynulliad Cenedlaethol Cymru">Gynulliad Cenedlaethol Cymru</a> drwy <a href="/wiki/Gorchymyn_Cymhwysedd_Deddfwriaethol" title="Gorchymyn Cymhwysedd Deddfwriaethol">Orchmynion Cymhwysedd Deddfwriaethol</a>, gan alluogi felly i'r Cynulliad creu a phasio deddfwriaeth mewn meysydd penodol ar ffurf <a href="/wiki/Mesur_Cynulliad_Cenedlaethol_Cymru" title="Mesur Cynulliad Cenedlaethol Cymru">Mesurau'r Cynulliad</a>. Daeth y ddeddf i rym ar 1 Ebrill 2007, gan sefydlu Cylchdro Cymru, a bathwyd y termau "<a href="/wiki/Cyfraith_Gyfoes_Cymru" class="mw-redirect" title="Cyfraith Gyfoes Cymru">Cyfraith Gyfoes Cymru</a>" a "<a href="/wiki/Cymru%27r_Gyfraith" title="Cymru'r Gyfraith">Chymru'r Gyfraith</a>" i ddisgrifio'r drefn newydd hon. Estynnwyd y meysydd a ddatganolwyd yn ddeddfwriaethol i Gymru yn sgil <a href="/wiki/Refferendwm_ar_bwerau_Cynulliad_Cenedlaethol_Cymru_2011" title="Refferendwm ar bwerau Cynulliad Cenedlaethol Cymru 2011">refferendwm yn 2011</a>. Er gwaethaf, ni ddatganolwyd pwerau'r gyfundrefn gyfiawnder i Gymru, ac felly mae Cymru a Lloegr yn parhau yn un awdurdodaeth gyfreithiol. </p> <div class="mw-heading mw-heading2"><h2 id="Y_ddadl_dros_awdurdodaeth_ar_wahân_i_Gymru"><span id="Y_ddadl_dros_awdurdodaeth_ar_wah.C3.A2n_i_Gymru"></span>Y ddadl dros awdurdodaeth ar wahân i Gymru</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Cymru_a_Lloegr&veaction=edit&section=1" title="Golygu'r adran: Y ddadl dros awdurdodaeth ar wahân i Gymru" class="mw-editsection-visualeditor"><span>golygu</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Cymru_a_Lloegr&action=edit&section=1" title="Edit section's source code: Y ddadl dros awdurdodaeth ar wahân i Gymru"><span>golygu cod</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-bottom:0.01em; padding: 0.01px; text-align: left; font-size: 100%;"> <dl><dd><span class="boilerplate seealso"><i>Prif: <a href="/wiki/System_cyfiawnder_i_Gymru" title="System cyfiawnder i Gymru">System cyfiawnder i Gymru</a></i></span></dd></dl></div> <p>O ganlyniad i'r sefyllfa gyfreithiol a grëwyd drwy estyn pwerau deddfwriaethol, ond nid cyfiawnder, i Gymru, mae nifer o wleidyddion ac ysgolheigion wedi galw ar greu awdurdodaeth ar wahân i Gymru. Cychwynnodd yr Ymchwiliad i Sefydlu Awdurdodaeth ar wahân i Gymru yn 2012 i archwilio i'r mater.<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> Cefnogwyd y syniad gan <a href="/wiki/Plaid_Cymru" title="Plaid Cymru">Blaid Cymru</a>, y grŵp Cyfiawnder i Gymru,<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> ac ysgrifenwyr i'r felin drafod <a href="/wiki/Sefydliad_Materion_Cymreig" title="Sefydliad Materion Cymreig">Sefydliad Materion Cymreig</a>.<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><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> Datganoli pwerau cyfiawnder oedd un o argymhellion y <a href="/wiki/Comisiwn_Cyfiawnder_yng_Nghymru" title="Comisiwn Cyfiawnder yng Nghymru">Comisiwn Cyfiawnder yng Nghymru</a> yn 2019. Dadleuai'r Athro <a href="/wiki/Thomas_Glyn_Watkin" title="Thomas Glyn Watkin">Thomas Glyn Watkin</a> a Daniel Greenberg yn eu cyfrol <i>Legislating for Wales</i> (2018) hefyd bod angen trefniadaeth annibynnol ar Gymru. </p> <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=Cymru_a_Lloegr&veaction=edit&section=2" 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=Cymru_a_Lloegr&action=edit&section=2" 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/Hanes_cyfansoddiadol_Cymru" title="Hanes cyfansoddiadol Cymru">Hanes cyfansoddiadol Cymru</a></li></ul> <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=Cymru_a_Lloegr&veaction=edit&section=3" 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=Cymru_a_Lloegr&action=edit&section=3" 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"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">"<a rel="nofollow" class="external text" href="https://busnes.senedd.cymru/mgIssueHistoryHome.aspx?IId=2594">Ymchwiliad i sefydlu awdurdodaeth ar wahân i Gymru</a>", <a href="/wiki/Senedd_Cymru" title="Senedd Cymru">Senedd Cymru</a> (3 Gorffennaf 2013). Adalwyd ar 22 Hydref 2021.</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.bbc.co.uk/cymrufyw/34336624">Angen 'Cyfiawnder i Gymru,' medd cyfreithwyr</a>", <a href="/wiki/BBC" title="BBC">BBC</a> (23 Medi 2015). Adalwyd ar 22 Hydref 2021.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><span style="font-size:0.95em; font-weight:bold; color: var(--color-progressive--active, #233566);">(Saesneg)</span> Alan Trench, "<a rel="nofollow" class="external text" href="https://www.iwa.wales/agenda/2015/10/a-legal-jurisdiction-for-wales/?lang=cy">A legal jurisdiction for Wales?</a>", <a href="/wiki/Sefydliad_Materion_Cymreig" title="Sefydliad Materion Cymreig">Sefydliad Materion Cymreig</a> (5 Hydref 2015). Adalwyd ar 22 Hydref 2021.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><span style="font-size:0.95em; font-weight:bold; color: var(--color-progressive--active, #233566);">(Saesneg)</span> Theodore Huckle, "<a rel="nofollow" class="external text" href="https://www.iwa.wales/agenda/2016/04/why-wales-needs-its-own-legal-jurisdiction/?lang=cy">Why Wales needs its own legal jurisdiction</a>", <a href="/wiki/Sefydliad_Materion_Cymreig" title="Sefydliad Materion Cymreig">Sefydliad Materion Cymreig</a> (7 Ebrill 2016). Adalwyd ar 22 Hydref 2021.</span> </li> </ol></div></div> <!-- NewPP limit report Parsed by mw‐api‐int.codfw.main‐5fd4fc67fd‐ldgpv Cached time: 20241104234006 Cache expiry: 2592000 Reduced expiry: false Complications: [] CPU time usage: 0.062 seconds Real time usage: 0.213 seconds Preprocessor visited node count: 393/1000000 Post‐expand include size: 1914/2097152 bytes Template argument size: 443/2097152 bytes Highest expansion depth: 18/100 Expensive parser function count: 0/500 Unstrip recursion depth: 0/20 Unstrip post‐expand size: 2365/5000000 bytes Lua time usage: 0.008/10.000 seconds Lua memory usage: 622937/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 60.187 1 -total 68.33% 41.125 1 Nodyn:Iaith-en 65.37% 39.344 1 Nodyn:LangWithName 62.77% 37.778 1 Nodyn:Lang 59.86% 36.028 1 Nodyn:Category_handler 46.26% 27.844 1 Nodyn:Category_handler/numbered 42.34% 25.484 1 Nodyn:Namespace_detect 20.69% 12.450 1 Nodyn:Cyfeiriadau 7.67% 4.619 1 Nodyn:Category_handler/blacklist 4.98% 2.998 2 Nodyn:Eicon_en --> <!-- Saved in parser cache with key cywiki:pcache:idhash:44450-0!canonical and timestamp 20241104234006 and revision id 11767600. Rendering was triggered because: api-parse --> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><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=Cymru_a_Lloegr&oldid=11767600">https://cy.wikipedia.org/w/index.php?title=Cymru_a_Lloegr&oldid=11767600</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:Cyfraith_Cymru" title="Categori:Cyfraith Cymru">Cyfraith Cymru</a></li><li><a href="/wiki/Categori:Cyfraith_Lloegr" title="Categori:Cyfraith Lloegr">Cyfraith Lloegr</a></li><li><a href="/wiki/Categori:Gwleidyddiaeth_Cymru" title="Categori:Gwleidyddiaeth Cymru">Gwleidyddiaeth Cymru</a></li><li><a href="/wiki/Categori:Gwleidyddiaeth_Lloegr" title="Categori:Gwleidyddiaeth Lloegr">Gwleidyddiaeth Lloegr</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:Erthyglau_sy%27n_cynnwys_testun_Saesneg" title="Categori:Erthyglau sy'n cynnwys testun Saesneg">Erthyglau sy'n cynnwys testun Saesneg</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 Mai 2023, am 10:38.</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=Cymru_a_Lloegr&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-f69cdc8f6-828bf","wgBackendResponseTime":156,"wgPageParseReport":{"limitreport":{"cputime":"0.062","walltime":"0.213","ppvisitednodes":{"value":393,"limit":1000000},"postexpandincludesize":{"value":1914,"limit":2097152},"templateargumentsize":{"value":443,"limit":2097152},"expansiondepth":{"value":18,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":2365,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 60.187 1 -total"," 68.33% 41.125 1 Nodyn:Iaith-en"," 65.37% 39.344 1 Nodyn:LangWithName"," 62.77% 37.778 1 Nodyn:Lang"," 59.86% 36.028 1 Nodyn:Category_handler"," 46.26% 27.844 1 Nodyn:Category_handler/numbered"," 42.34% 25.484 1 Nodyn:Namespace_detect"," 20.69% 12.450 1 Nodyn:Cyfeiriadau"," 7.67% 4.619 1 Nodyn:Category_handler/blacklist"," 4.98% 2.998 2 Nodyn:Eicon_en"]},"scribunto":{"limitreport-timeusage":{"value":"0.008","limit":"10.000"},"limitreport-memusage":{"value":622937,"limit":52428800}},"cachereport":{"origin":"mw-api-int.codfw.main-5fd4fc67fd-ldgpv","timestamp":"20241104234006","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"Cymru a Lloegr","url":"https:\/\/cy.wikipedia.org\/wiki\/Cymru_a_Lloegr","sameAs":"http:\/\/www.wikidata.org\/entity\/Q1156248","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q1156248","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":"2008-05-29T14:38:47Z","dateModified":"2023-05-09T10:38:07Z","image":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/b\/b6\/England_and_Wales_within_the_UK_and_Europe.svg","headline":"awdurdodaeth gweinyddol o fewn y Deyrnas Unedig"}</script> </body> </html>