The movement was started by Ibn Tumart in the Masmuda tribe , followed by Abd al-Mu ` min al-Gumi between 1130 and his death in 1163 , the Almohads defeated the ruling Almoravids , extending their power over all of the Maghreb .
Between 1130 and his death in 1163 , Abd al-Mu ` min al-Kumi , a Berber from the Masmuda tribe , defeated the ruling Almoravids and became ruler over all northern Africa as far as Libya .