Lady Catherine Cavendish (1665-1712) (1665–1712) Parents Henry Cavendish, 2nd Duke of Newcastle Frances Pierrepont Children John Tufton Lady Katherine Tufton John Tufton Anne Cecil, Countess of Salisbury Lady Isabella Tufton Mary, Countess of Harold Margaret Coke, Countess of Leicester Thomas Tufton Siblings Elizabeth Monck, Duchess of Albemarle Lady Frances Cavendish Lady Arabella Cavendish Margaret Holles, Duchess of Newcastle-upon-Tyne Henry Cavendish, Earl of Ogle Partners Thomas Tufton, 6th Earl of Thanet