<a href="https://en.wikipedia.org/wiki/Castle_Cornet" id="mwXg" rel="mw:WikiLink" title="Castle Cornet">Castle Cornet</a> in <a href="https://en.wikipedia.org/wiki/Guernsey" id="mwXw" rel="mw:WikiLink" title="Guernsey">Guernsey</a>, the last stronghold which had supported the King in the <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Third_English_Civil_War" id="mwYA" rel="mw:WikiLink" title="Third English Civil War">Third English Civil War</a>, surrenders.