But the Christians rallied. In 1212 was fought the decisive battle of Las Navas de Tolosa, between the Moorish Khalif An-Nasr and the Castilian King, Alfonso VIII. The Musulmans were totally defeated. “Six hundred thousand combatants,” says El Makkari, with perhaps a trace of Oriental hyperbole, “were led by An-Nasr to the field of battle; all perished, except a few that did not amount to a thousand. This battle was a malediction, not only on Andalus but on all the West.” Yet the downfall of the Islamite power did not immediately follow. An-Nasr survived his defeat seven years, and his son, Abu Yusuf Yakub Al-Mustanser, reigned four more inglorious years. His dying (1223) without children was the signal for dissensions and disturbances throughout his still vast empire. While Abd-ul-Wahed was proclaimed Khalifa in Morocco, Al Adil took up the reins of sovereignty in Murcia. Both pretenders soon disappeared from the troubled scene, Abd-ul-Wahed being assassinated, and his rival, after having been defeated in Spain by the Christians, being forced to take refuge in Morocco, there to abdicate in favour of An-Nasr’s son, Yahya. Abu-l-Ala, Al Adil’s brother, who had been left as governor in Ishbiliyah, declared himself Khalifa on learning the accession of Yahya. He was the last of the race of Abd-ul-Mumin to rule in the city. He was driven from Spain--to found a wider empire in Africa--by Mohammed Ben Yusuf, variously styled Ben Hud and Al Jodhami. The storm-clouds were gathering fast over the beautiful city by the Guadalquivir. Spain’s great national hero, St Ferdinand, now wore the crown of Castile. He routed the Moors at Jerez, and in 1235 wrested from them their most ancient and glorious metropolis, Cordova. The discord and sedition which history shows are the usual prelude to the extinction of a state, were not wanting at Seville. Ben Hud died in 1238, and his subjects turned once more in their despair to the African Almohades. But no new army of Ghazis crossed the strait to do battle with the Unbeliever. Despite their protestations of allegiance to the Khalifa of Barbary, the Moors of Seville were left to fight their last fight unassisted. When the Castilian army appeared before the walls, the defence was directed, strangely enough for a Mohammedan community, by a junta of six persons. Their names are worthy of being recorded: Abu Faris, called by the Spaniards Axataf, Sakkáf, Shoayb, Ben Khaldûn, Ben Khiyar, and Abu Bekr Ben Sharih.