[1] Almohad victory By the time the 12th century arrived, the Zirid dynasty's control over Ifriqiya had noticeably weakened.
This allowed the Normans of Sicily to expand their territory under the leadership of King Roger II.
[5][4] In 1159, a massive Almohad army, estimated to be the size of 100,000 men by Ibn Athir, departed from Salé and headed eastwards, led by Abd al-Mu'min who was accompanied by Abu'l-Hasan the last Zirid sultan.
[6] Abū ʿAbdallāh b. Maymūn led a fleet of seventy galleys sailing along the coast in alignment with the Almohad army.
The army captured Tunis after a three-day siege, expelling the Banu Khurasan and installing an Almohad governor in the city.