William Cavendish, 4th Duke of Devonshire (1720 - 1764)
RA Collection: People and Organisations
William Cavendish, 4th Duke of Devonshire KG PC (8 May 1720 — 2 October 1764), styled Lord Cavendish before 1729 and Marquess of Hartington between 1729 and 1755, was a British Whig statesman who was briefly nominal Prime Minister of Great Britain. He was the first son of William Cavendish, 3rd Duke of Devonshire and Catherine Hoskins.
Born: 8 May 1720
Died: 2 October 1764