Abū Aḥmad ʿAbd Allāh ibn al-Mustanṣir, better known by his regnal title al-Mustaʿṣim bi-llāh, was the 37th and last Abbasid caliph of Baghdad. He held the title from 1242 until his death at the hands of Mongols in 1258.
- Occupation
- politician, caliph
- Position held
- Abbasid caliph
- Citizenship
- Abbasid Caliphate
- Born
- 1213, 1212, 1212
- Died
- February 20, 1258, 1258
