William IV of the United Kingdom William IV of the United Kingdom William IV (William Henry; 21 August 1765 – 20 June 1837) was King of the United Kingdom of Great Britain and Ireland and King of Hanover from 26 June 1830 until his death in 1837. The third son of George III, William succeeded his elder brother George IV, becoming the last king and penultimate monarch of Britain's House of Hanover. William served in the Royal Navy in his youth, spending time in North America and the Caribbean, and was later nicknamed the "Sailor King". In 1789, he was created Duke of Clarence and St
HMS Monarch (1765) any ship engaged in the battle. In 1808, she helped escort the Portuguese royal family in its flight from Portugal to Brazil. "Monarch" was broken up in 1813. HMS Monarch (1765) HMS "Monarch" was a 74-gun third rate ship of the line of the Royal Navy, launched on 20 July 1765 at Deptford Dockyard. "Monarch" had a very active career, fighting in her first battle in 1778 at the First Battle of Ushant and her second under Admiral Rodney at Cape St. Vincent in 1780. She fought in the van of Graves' fleet at the Battle of the Chesapeake in