William de Albini, feudal Lord of Belvoir, like his father, adhered firmly to King Henry III. He m. 1st, Albreda, dau. of Henry Lord Biseth, and 2ndly, Isabel-----, and left issue by the former, an only dau. and heiress, Isabel de Albini, who m. Robert de Ros, Lord Ros of Hamlake, and conveyed to him the feudal barony and castle of Belvoir, which eventually passed from the family of Ros to that of Manners. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage, Ltd., London, England, 1883, p. 160, Daubeney, Barons Daubeney, Earl of Bridgewater]