Almoravid dynasty
Gen. Ibn (pronounced Ben) Yusuf (Herbert Lom) of the Almoravid dynasty has summoned all the Emirs of Al-Andalus to North Africa. He chastises them for co-existing peacefully with their Christian neighbors, which goes against his dream of Islamic world domination. The emirs return to Spain with orders to resume hostilities with the Christians while Ibn Yusuf readies his army for a full-scale invasion.