He was married to Joan, former wife of Malise IV, Earl of Strathearn and daughter of Sir John de Menteith. Her paternal grandparents were Walter Bailloch and Mary I, Countess of Menteith. They had no children, so when he was killed at Halidon Hill on 19 July 1333 (one of five Scottish earls to die in the battle), his earldom became extinct.