In A.H. 572 (about A.D. 1179) the King of Castile reduced Caenza, and the Moors were defeated before Toledo. The following year the Portuguese were no less successful before Abrantes, which the Africans had besieged. These disasters roused the wrath of Yussef abu Yagur (son and successor of Abdulmumen who died A.H. 558 = A.D. 1165); but as an obscure rebellion required his presence at that time in Mauritania, he did not land in Spain until A.H. 580. He marched without delay against Santarem, which his soldiers had vainly besieged some years before. Wishing to divide the Portuguese force, he one night sent an order to his son Cid Abu Ishac, who lay encamped near him, to march with the Andalusian cavalry on Lisbon. The officer who carried the order instead of Lisbon named Seville; the whole Moslem army were sure that some disaster was impending, and that the siege was to be raised; before morning the camp was deserted, the guard alone of Yussef remaining. While he despatched orders to recall the alarmed fugitives, the Christians, who were soon aware of the retreat, issued from the walls, surrounded and massacred the guard. Yussef defended himself like a hero: six of the advancing assailants he laid low, before the same fate was inflicted on himself. The merciless carnage of the Christians spared not even his female attendants. At this moment two companies of cavalry arrived, and, finding their monarch dying, furiously charged the Christians, whom they soon put to flight. In a few hours the whole army returned, and, inspired with the same hope of vengeance, they stormed and took the place, and put every living creature to the sword.