Sarah Churchill, Duchess of Marlborough British duchess (1660-1744) (1660–1744) Parents Frances Thornhurst Richard Jennings Children Mary Churchill, Duchess of Montagu Anne Churchill, Countess of Sunderland Lord Charles Churchill Harriet Churchill John Churchill, Marquess of Blandford Henrietta Churchill, 2nd Duchess of Marlborough Elizabeth Churchill, Countess of Bridgewater Siblings Frances Talbot, Countess of Tyrconnel Barbara Jenyns Partners John Churchill, 1st Duke of Marlborough
