1641-1709. Mistress of Charles II of England 1660-70 and mother of his son, the Duke of Grafton (1663-90). She was the wife from 1659 of Roger Palmer (1634-1705), created Earl of Castlemaine in 1661. She was the chief mistress of Charles 1660-70, when she was created Duchess of Cleveland. Among her descendants through the Duke of Grafton is Diana, Princess of Wales.