يوسف بن تاشفين
The Mozarab population was badly affected by the hardening of relations between the Christians and the Muslims during the Almoravid period. In 1099, the people of Granada, by order of the Almoravid Emir, Yusuf ibn Tashfin, acting on the advice of his Ulema, destroyed the main Mozarab church of the Christian community.