Mary, Countess of Harold English aristocrat and philanthropist (1701–1785) Parents Lady Catherine Cavendish Thomas Tufton, 6th Earl of Thanet Children John Leveson-Gower unknown Leveson-Gower Siblings Lady Katherine Tufton John Tufton Thomas Tufton John Tufton Margaret Coke, Countess of Leicester Anne Cecil, Countess of Salisbury Lady Isabella Tufton Partners Anthony Grey, Earl of Harold John Leveson-Gower, 1st Earl Gower
