With each year, with every season even, the Christian banners continued to move steadily southward. The resources of the divided Moslem empire could no longer oppose a concerted resistance to their advance. The most powerful Moorish princes of the Peninsula were already the tributaries of Ferdinand. Coimbra had been taken, and nearly all of what is included within the limits of modern Portugal was in his hands. Vast districts of the subjugated territory were systematically depopulated by enforced emigration. The inhabitants of the captured cities were in many instances also driven into exile, and where a prolonged resistance had exasperated the conquerors, the lands, the effects, and the seraglios of the wealthiest citizens were seized, often in infringement of the terms of capitulation. Establishing themselves in their new possessions, the rude cavaliers of Castile and the Asturias carried the boisterous manners and brutal tastes of the swineherd and the mountaineer into the splendid abodes of Moorish art and luxury. The states of Valencia and Malaga, owing to the political imbecility of their rulers, had descended to a position greatly inferior to that to which they were entitled by reason of their commercial and agricultural resources. In the division of the khalifate, Valencia had been retained by Abd-al-Aziz, the grandson of Al-Mansur, who, during the subsequent disturbances, was the acknowledged head of the Amiride faction. Gifted with rare talents for administration and command, his indolence and love of pleasure counteracted these great natural advantages, and his son, Abd-al-Melik, who succeeded him, possessed all his indisposition to exertion, without his abilities. The city of Valencia, invested by Ferdinand, proved too strong for his efforts, but by a feigned retreat he lured the garrison and the citizens outside the walls and into an ambuscade. The delightful climate of that province, the garden of Andalusia, has never been propitious to the creation of a race of warriors, and the effeminate Valencians, who had donned their holiday attire in expectation of a triumph, expired almost without resistance under the weapons of the Christian knights. Resuming the siege, Ferdinand was attacked by illness, and soon after returned to Leon to die. His adversary Motadhid, whose crafty and unscrupulous policy had founded upon the ruins of the khalifate a kingdom more imposing in its dimensions than remarkable for its military strength, soon followed him to the grave. Malaga, governed by the Edrisites, was long a centre of Berber influence. Its lords, also enervated by the temptations of a tropical climate, to the disgust of their martial followers, suffered their lives to pass in inglorious ease until their domain was finally absorbed by the growing power of Granada.