Mahommedan Spain followed the fate of Africa, and in 1170 the Muwahhadis transferred their capital to Seville, a step followed by the founding of the great mosque, now superseded by the cathedral, the tower of which they erected in 1184 to mark the accession of Ya`kub el Mansur, From the time of Yusef II., however, they governed their co-religionists in Spain and Central North Africa through lieutenants, their dominions outside Morocco being treated as provinces.
Or "El Mansur" (1184-1199), the successors of Abd-el-Mumin, were both able men.
But in the end they became less fanatical than the Murabtis, and Ya`kub el Mansur was a highly accomplished man, who wrote a good Arabic style and who protected the philosopher Averroes.
His title of El Mansur, "The Victorious," was earned by the defeat he inflicted on Alphonso VIII.
In 1212 Mahommed III., "En-Nasir" (1199-1214), the successor of El Mansur, was utterly defeated by the allied five Christian princes of Spain, Navarre and Portugal, at Las Navas de Tolosa in the Sierra Morena.
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