Back William IV van die Verenigde Koninkryk AF Guillén IV d'o Reino Uniu AN Willelm IV Bretta Cyning ANG ويليام الرابع ملك المملكة المتحدة Arabic ويليام الرابع ملك المملكه المتحده ARZ Guillermu IV del Reinu Xuníu AST IV Vilhelm (Böyük Britaniya kralı) AZ دؤردونجو ویلیام (پادشاهی متحده) AZB Вільгельм IV (кароль брытанскі) BE Уилям IV Bulgarian
| William IV | |||||
|---|---|---|---|---|---|
 Portrait of William IV by Martin Archer Shee, 1833 | |||||
| King of the United Kingdom | |||||
| Reign | 26 June 1830 – 20 June 1837 | ||||
| Coronation | 8 September 1831 | ||||
| Predecessor | George IV | ||||
| Successor | Victoria | ||||
| King of Hanover | |||||
| Reign | 26 June 1830 – 20 June 1837 | ||||
| Predecessor | George IV | ||||
| Successor | Ernest Augustus | ||||
| Viceroy | Prince Adolphus, Duke of Cambridge | ||||
| Born | 21 August 1765 Buckingham House, London, England | ||||
| Died | 20 June 1837 (aged 71) Windsor Castle, Berkshire, England | ||||
| Burial | 8 July 1837 Royal Vault, St George's Chapel, Windsor Castle | ||||
| Spouse | |||||
| Issue more... | |||||
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| House | Hanover | ||||
| Father | George III | ||||
| Mother | Charlotte of Mecklenburg-Strelitz | ||||
| Religion | Protestant | ||||
| Signature |  | ||||
| Military career | |||||
| Allegiance | Great Britain | ||||
| Service | Royal Navy | ||||
| Years of active service | 1779–1790 | ||||
| Rank | Rear admiral (active service) | ||||
| Commands | |||||
| Battles / wars | Battle of Cape St. Vincent | ||||
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 British North America and the Caribbean, and was later nicknamed the "Sailor King". In 1789, he was created Duke of Clarence and St Andrews. Between 1791 and 1811, he cohabited with the actress Dorothea Jordan, with whom he had ten children. In 1818, he married Princess Adelaide of Saxe-Meiningen; William was not known to have had mistresses during their marriage. In 1827, he was appointed Britain's Lord High Admiral, the first since 1709.
As his two elder brothers died without leaving legitimate issue, William inherited the throne when he was 64 years old. His reign saw several reforms: the Poor Law was updated, child labour restricted, slavery abolished in nearly all of the British Empire, and the electoral system refashioned by the Reform Acts of 1832. Although William did not engage in politics as much as his brother or his father, he was the last British monarch to appoint a prime minister contrary to the will of Parliament. He granted his German kingdom a short-lived liberal constitution. William had no surviving legitimate children at the time of his death, so he was succeeded by his niece Victoria in the United Kingdom and his brother Ernest Augustus in Hanover.