 Complete the following phrase:  In the early 12th century they defeated the Almoravids and took control of Tlemcen. During the reign of al-Mansurs son Abd al-Aziz ibn Mansur, Bougie had about 100,000 people, and the Hammadids consolidated their power in the city. The dynasty suffered a decline after this point; efforts to develop more sea power in the Mediterranean were foiled by the Normans, who by the 12th century had 