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
Coronation of the British monarch monarch's crowning, after which they are worn for the rest of the service and its subsequent festivities. Garter, Clarenceaux, and Norroy and Ulster Kings of Arms have heraldic jurisdiction over England, Wales and Northern Ireland; Lord Lyon King of Arms is responsible for Scotland. In addition, there is a King of Arms attached to each of the Order of the Bath, Order of St. Michael and St. George and the Order of the British Empire. These have only a ceremonial role, but are authorised by the statutes of their orders to wear the same crown as Garter at a coronation.