Sarah Churchill, Duchess of Marlborough (born 1660)

Sarah Churchill, Duchess of Marlborough, Princess of Mindelheim, Countess of Nellenburg, was an English courtier who rose to be one of the most influential women of her time through her close relationship with Anne, Queen of Great Britain. The Duchess of Marlborough's relationship and influence with Anne were widely known, and leading public figures often turned their attentions to her, hoping for favour from Anne.