Al-Muntasir, Abbasid caliph (born 837)

Abu Ja'far Muḥammad ibn Ja'far ibn Muḥammad ibn Hārūn al-Muntasir biʾLlāh, better known by his regnal title al-Muntasir biʾLlāh was the caliph of the Abbasid Caliphate from 861 to 862, during the "Anarchy at Samarra". The power struggle between al-Muntasir and his brother, al-Mu'tazz, backed by different factions, climaxed with the Turkic leaders plotting the murder of his father al-Mutawakkil. Following the assassination in 861, al-Muntasir assumed the caliphate with Turkic support.