يوسف بن تاشفين
With the assistance of the Almoravids, they were able to defeat Alfonso in 1086. During the six years which preceded his deposition in 1091, Abbassid behaved with valour on the field, but was politically inept and cruel. At the end what he had foreseen happened to him: in 1095 his kingdom was overthrown by Yusuf ibn Tashfin and Almoravid sympathizers within his city, following which he was deposed. He was exiled to Morocco