Lady Anne Churchill (1683-1716) was the daughter of John Churchill, 1st Duke of Marlborough and Sarah Jenyns. She married Charles Spencer, 3rd Earl of Sunderland, son of Robert Spencer, 2nd Earl of Sunderland and Lady Anne Digby, on 2 January 1699/0. She died on 15 April 1716 at age 33, buried on 24 April 1716 at Brington, Northamptonshire, England.
Children of Lady Anne Churchill and Charles Spencer, 3rd Earl of Sunderland
Hon. Robert Spencer b. 2 Dec 1700, d. 12 Sep 1701
Robert Spencer, 4th Earl of Sunderland b. 24 Oct 1701, d. 15 Sep 1729
Lady Anne Spencer+ b. 1702, d. 19 Feb 1769
Lt.-Gen. Charles Spencer, 3rd Duke of Marlborough+ b. 22 Nov 1706, d. 20 Oct 1758