Sarah Churchill, Duchess of Marlborough
She was the daughter of Francis Godolphin, 2nd Earl of Godolphin, and Henrietta Churchill, 2nd Duchess of Marlborough. She was also the granddaughter of Sidney Godolphin, 1st Earl of Godolphin, as well as John Churchill, 1st Duke of Marlborough, and Sarah Churchill, Duchess of Marlborough.