 When another brother, Anselm, the 6th Earl, died in December 1245, the male descendants of the great Earl Marshal became extinct.The extensive family possessions were now divided among Anselm's five sisters and their descendants, the Earldom of Pembroke reverting to the Crown.The next holder of the lands of the Earldom of Pembroke was William de Valence, a younger son of Hugh de Lusignan, count of La Marche, by his marriage with Isabella of Angoulême, widow of the English King John.