Alonso VI. had already taken the city of Toledo and made peace with the Moors, but the latter, intent on ruling over the whole of the Peninsula, soon became unmindful of the treaty. In this new crisis many foreign knights hastened to acquire fresh renown in this land of a perpetual crusade. Among the most renowned were Henry of Lorraine; Raymond de St. Gilles, Count of Toulouse; and Raymond, son of Guillaume Tête-Hardie of Burgundy, and brother of Pope Calixtus II. They contributed so much to the triumph of the cross that Alonso gave them his three daughters in marriage. Urraca (the name of a delicious pear in Spain) fell to the lot of Raymond of Burgundy, with Galicia for her portion, and to him was entrusted the task of rebuilding Avila, the more formidable because it required numerous outposts and a continual struggle with the Moors. The flower of Spanish knighthood came to his aid, and the king granted great privileges to all who would establish themselves in the city. Hewers of wood, stone-cutters, masons, and artificers of all kinds came from Biscay, Galicia, and Leon. The king sent the Moors taken in battle to aid in the work. The bishop in pontificals, accompanied by a long train of clergy, blessed the outlines traced for the walls, stopping to make special exorcisms at the spaces for the ten gates, that the great enemy of the human race might never obtain entrance into the city. The walls were built out of the ruins left successively behind by the Moors, the Goths, and the Romans, to say nothing of Hercules. As an old chronicler remarks, had they been obliged to hew out and bring hither all the materials, no king would have been able to build such walls. They are forty-two feet high and twelve feet thick. The so-called towers are rather solid circular buttresses that add to their strength. These walls were begun May 3, 1090. Eight hundred men were employed in the work, which was completed in nine years. They proved an effectual barrier against the Saracen; the crescent never floated from those towers. How proud the people are of them is shown by the lines at the head of this sketch: “Behold the superb walls that surround and crown thee, victorious in so many assaults! Each battlement deserves a crown in reward for thy glorious triumphs!” It was thus this daughter of Hercules rose from the grave where she had lain seemingly dead so many years. Houses sprang up as by enchantment, and were peopled so rapidly that in 1093 there were about thirty thousand inhabitants. The city thus rebuilt and defended by its incomparable knights merited the name often given it from that time by the old chroniclers, _Avila de los Caballeros_.