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 on Christmas Day, possibly in imitation of the Byzantine emperors, and John's was on Ascension Day. Elizabeth I consulted her astrologer, John Dee, before deciding on an auspicious date. The coronations of Charles II in 1661 and Anne in 1702 were on St George's Day, the feast of the patron saint of England. Under the Hanoverian monarchs in the late eighteenth and nineteenth centuries, it was deemed appropriate to extend the waiting period to several months, following a period of mourning for the previous monarch and to allow time for preparation of the ceremony. In the case of every monarch