As some of his subjects were sorely persecuted by the Moors, Alfonso now sent word to the Cid to punish them, a task the hero promised to perform, provided the king would pledge himself never again to banish a man without giving him thirty days' notice, and to make sundry other wise reforms in his laws. Having thus secured inestimable boons for his fellow-countrymen, the Cid proceeded to besiege sundry Moorish castles, all of which he took, winning thereby much booty. Having thus served his monarch, the Cid was recalled in triumph to Castile, where he was told to keep all he had won from the Moors. In return the Cid helped Alfonso to secure Toledo, seeing the king with whom this king had sworn alliance was now dead. It was while the siege of this city was taking place that Bishop Jerome was favored by a vision of St. Isidro, who predicted they would take the city, a promise verified in 1085, when the Cid's was the first Christian banner to float above its walls. Our hero now became governor of this town, but, although he continued to wage war against the Moors, his successes had made the courtiers so jealous that they induced the king to imprison Ximena and her daughters. Perceiving he was no longer in favor at court, the Cid haughtily withdrew, and, when Alfonso came down into Valencia, demanding that the cities which had hitherto paid tribute to his subject should now do so to him, the Cid retaliated by invading Alfonso's realm. None of the courtiers daring to oppose him, Alfonso had cause bitterly to repent of what he had done, and humbly assured his powerful subject he would never molest him again. Ever ready to forgive an ungrateful master, the Cid withdrew, and for a time king and subject lived in peace. Although the Cid had permitted the Moors to remain in the cities he had conquered, they proved rather restive under the Christian yoke, and guided by Abeniaf finally told the Moors in Northern Africa that if they would only cross the sea they would deliver Valencia into their hands. But this conspiracy soon became known to the Moors who favored the Cid, and they immediately notified him, holding their town which was in dire peril for twelve days. To keep his promise, Abeniaf finally hauled some of the Moors up over the walls by means of ropes, and the presence of these foes in their midst compelled the Moors who favored the Cid to leave the city in disguise, thus allowing Abeniaf and his allies to plunder right and left and even to murder the Moorish king. This done, Abeniaf himself assumed the regal authority, and began to govern the city in such an arbitrary way that he soon managed to offend even his own friends.