William Cavendish, 3rd Earl of Devonshire English politician (1617-1684) (1617–1684) Parents Christian Cavendish, Countess of Devonshire William Cavendish, 2nd Earl of Devonshire Children William Cavendish, 1st Duke of Devonshire Anne Cecil, Countess of Exeter Siblings Charles Cavendish Anne Cavendish Partners Elizabeth Cecil, Countess of Devonshire
