en Berber dynasty of Western Sahara, whose name derives from the "Al Mourabitoun" arabic, the Monaco-warrior, that the Sultan Ibn tachfine youssef who built the city of Marrakech (the future capital of the Kingdom) in 1070, and then take care of a political agreement between Morocco and Muslim Spain. Thanks to him, the andalusian civilization in North Africa, then the head of the force is transmitted almoravid, cloudy of the Ebro in Spain. Youssef Ben Ali, his son succeeded him in 1106 to govern for 37 years.