When King Fernando afterwards took the field, he was joined by this Moorish ally at the Navas or plains of Tolosa; who was in company with him when the king marched to Jaen, to the foot of a tower, and set fire to it, whereupon those Moors who remained in the tower were burned to death, and those who leaped from the walls were received on the points of lances. Notwithstanding the burnt-offering of this tower, Heaven did not smile upon the attempt of King Fernando to reduce the city of Jaen. He was obliged to abandon the siege, but consoled himself by laying waste the country. He was more successful elsewhere. He carried the strong town of Priego by assault, and gave the garrison their lives on condition of yielding up all their property, and paying, moreover, eighty thousand maravedis of silver. For the payment of this sum they were obliged to give as hostages fifty-five damsels of great beauty, and fifty cavaliers of rank, besides nine hundred of the common people. The king divided his hostages among his bravest cavaliers and the religious orders; but his vassal, the Moorish king of Baeza, obtained the charge of the Moorish damsels. The king then attacked Loxa, and his men scaled the walls and burnt the gates, and made themselves masters of the place. He then led his army into the Vega of Granada, the inhabitants of which submitted to become his vassals, and gave up all the Christian captives in that city, amounting to thirteen hundred. Aben Mohamed, king of Baeza, then delivered to King Fernando the towers of Martos and Andujar, and the king gave them to Don Alvar Perez de Castro, and placed with him Don Gonzalo Ybañez, Master of Calatrava, and Tello Alonzo Meneses, son of Don Alonzo Tellez, and other stout cavaliers, fitted to maintain frontier posts. These arrangements being made, and having ransacked every mountain and valley, and taken many other places not herein specified, King Fernando returned in triumph to Toledo, where he was joyfully received by his mother Berenguela and his wife Beatrix.