Abū al-Rabīʿ Sulaymān ibn al-Mutawakkil, better known by his regnal name al-Mustakfī (II) bi-llāh, was the twelfth Abbasid caliph of Cairo under the Mamluk Sultanate. His reign lasted from 1441 to 1451.
- Occupation
- caliph
- Position held
- Abbasid caliph
- Born
- 1388
- Died
- February 5, 1451