William Cavendish, 3rd Earl of Devonshire

The Right Honourable The Earl of Devonshire KB FRS
1631 portrait painting of William Cavendish by Cornelis Janssens van Ceulen
Born	10 October 1617
Died	23 November 1684
Spouse	Elizabeth Cavendish, Countess of Devonshire
Children	William Cavendish, 1st Duke of Devonshire Charles Cavendish Lady Anne Cavendish
Parent(s)	William Cavendish, 2nd Earl of Devonshire Christian Cavendish, Countess of Devonshire

William Cavendish, 3rd Earl of Devonshire, KB, FRS (c. 10 October 1617 – 23 November 1684) was an English nobleman and politician, known as a royalist supporter.