William Cavendish, 2nd Duke of Devonshire British nobleman and politician (1672-1729) (1672–1729) Parents Lady Mary Butler William Cavendish, 1st Duke of Devonshire Children Lord James Cavendish William Cavendish, 3rd Duke of Devonshire Lady Elizabeth Cavendish Lord Charles Cavendish Lady Rachel Cavendish Henrietta Cavendish Siblings Lord Henry Cavendish Elizabeth Cavendish Lord James Cavendish Partners Rachel Cavendish, Duchess of Devonshire
