XXI. After my Cid had done this good service to King Don Alfonso, he and King Zulema of Zaragoza entered Aragon, slaying, and burning, and plundering before them, and they returned to the Castle of Monzon with great booty. Then the Cid went into King Abenalfange's country, and did much mischief there; and he got among the mountains of Moriella, and beat down every thing before him, and destroyed the Castle of Moriella. And King Zulema sent to bid him build up the ruined Castle of Alcala, which is upon Moriella; and the Cid did so. But King Abenalfange being sorely grieved hereat, sent to King Pedro of Aragon, and besought him to come and help him against the Campeador. And the King of Aragon gathered together a great host in his anger, and he and the King of Denia came against my Cid, and they halted that night upon the banks of the Ebro; and King Don Pedro sent letters to the Cid, bidding him leave the castle which he was then edifying. My Cid made answer, that if the King chose to pass that way in peace, he would let him pass, and show him any service in his power. And when the King of Aragon saw that he would not forsake the work, he marched against him, and attacked him. Then was there a brave battle, and many were slain; but my Cid won the day, and King Abenalfange fled, and King Don Pedro was taken prisoner, and many of his Counts and knights with him. My Cid returned to Zaragoza with this great honour, taking his prisoners with him; and he set them all freely at liberty, and having tarried in Zaragoza a few days, set forth for Castille, with great riches and full of honours. XXII. Having done all these things in his banishment, my Cid returned to Castille, and the King received him well, and gave him the Castle of Dueñas, and of Orcejon, and Ybia, and Campo, and Gaña, and Berviesca, and Berlanga, with all their districts. And he gave him privileges with leaden seals appendant, and confirmed with his own hand, that whatever castles, towns, and places, he might win from the Moors, or from any one else, should be his own, quit and free for ever, both for him and for his descendants. Thus was my Cid received into the King's favour, and he abode with him long time, doing him great services, as his Lord. BOOK V.