(Plantagenet) Earl of Warren and Surrey Made ward of Peter de Savoy, the Queen's brother. John was a person of violent and imperious temper. He m(1) 1247 Alice dau. of Hugh le Brun, Count de la March, and half sister by the mother of King Henry III. He m(2) Joan dau. of William Lord Mowbray, but only had issue by m(1).