Her aunt , also Anne Vane , was a royal mistress .
She was the daughter of Henry Vane , first earl of Darlington , and his wife , Lady Grace Fitzroy ; she was a great - grandchild of Charles II .
daughter 's aunt , also Anne Vane , was a royal mistress .
She was the daughter of Henry Vane , first earl of Darlington , and his wife , Lady Grace Fitzroy ; she was a great - grandchild of Charles II .