William Anne Holles Capell, 4th Earl of Essex (7 October 1732 – 4 March 1799), was a British landowner and peer, a member of the House of Lords.
He was the son of William Capell, 3rd Earl of Essex (1696–1743), by his second marriage, to Lady Elizabeth Russell.
By his first wife, he had three children (George and his sister Elizabeth were painted in a double-portrait by Sir Joshua Reynolds in 1768, now in the Metropolitan Museum of Art, New York):[3] Several years after her death in childbirth in 1759,[4] he married, secondly, Harriet Bladen (1735–1821), on 2 March 1767.
Harriet was the daughter of Colonel Thomas Bladen of Glastonbury Abbey, Somerset.
[2] By his second wife, he had four children:[1] Essex died on 4 March 1799 at St James's Palace, Westminster.