Among the cavaliers were two noted for their valor; but who, though brothers-in-law, lived in mortal feud. One was Diego Perez, vassal to Alvar Perez and brother to him who had just been armed knight; the other was Pero Miguel, both natives of Toledo. Diego Perez was the one who had given cause of offense. He now approached his adversary and asked his pardon for that day only; that, in a time of such mortal peril there might not be enmity and malice in their hearts. The priests added their exhortations to this request, but Pero Miguel sternly refused to pardon. When this was told to the prince and Don Alvar, they likewise entreated Don Miguel to pardon his brother-in-law. “I will,” replied he, “if he will come to my arms and embrace me as a brother.” But Diego Perez declined the fraternal embrace, for he saw danger in the eye of Pero Miguel, and he knew his savage strength and savage nature, and suspected that he meant to strangle him. So Pero Miguel went into battle without pardoning his enemy who had implored forgiveness. At this time, say the old chroniclers, the shouts and yells of the Moorish army, the sound of their cymbals, kettle-drums, and other instruments of warlike music, were so great that heaven and earth seemed commingled and confounded. In regarding the battle about to overwhelm him, Alvar Perez saw that the only chance was to form the whole army into one mass, and by a headlong assault to break the centre of the enemy. In this emergency he sent word to the prince, who was in the rear with the reserve and had five hundred captives in charge, to strike off the heads of the captives and join him with the whole reserve. This bloody order was obeyed. The prince came to the front, all formed together in one dense column, and then, with the war-cry “Santiago! Santiago! Castile! Castile!” charged upon the centre of the enemy. The Moors’ line was broken by the shock, squadron after squadron was thrown into confusion, Moors and Christians were intermingled, until the field became one scene of desperate, chance-medley fighting. Every Christian cavalier fought as if the salvation of the field depended upon his single arm. Garcia Perez de Vargas, who had been knighted just before the battle, proved himself worthy of the honor. He had three horses killed under him, and engaged in a desperate combat with the King of the Azules, whom at length he struck dead from his horse. This king had crossed from Africa on a devout expedition in the cause of the Prophet Mahomet. “Verily,” says Antonio Agapida, “he had his reward.”