Cairo Restores an Abbasid Caliph

Timeline

1. 1258–1261Cairo · EgyptIn 1258 Hulegu captured Baghdad, the caliph al-Musta'sim was killed, and the Abbasid political entity was interrupted. After the Battle of Ain Jalut, Baybars consolidated Egypt and Syria, needing the highest Sunni religious title to counter the Ilkhanate and the crusaders and to strengthen the legitimacy of his own sultanate.
2. 1261Cairo Citadel · CairoA man claiming Abbasid descent, Abu'l-Qasim Ahmad, arrived in Cairo. Baybars installed him as caliph in June 1261 with the title al-Mustansir, and held a public ceremony granting authority to the sultan. Cairo henceforth had a caliphal title connected to the Baghdad tradition.
3. 1261Middle Euphrates · IraqAl-Mustansir led a coalition force north through Syria and the Jazira attempting to restore Baghdad. Ilkhanate forces defeated them on the middle Euphrates, and the caliph himself was killed. The first restoration attempt failed militarily, but the practice of installing a caliph in Cairo was not abandoned.
4. 1262Cairo · EgyptBaybars installed another Abbasid descendant, al-Hakim I. Thereafter the caliph resided permanently in Cairo, his main functions being to invest the sultan and provide religious sanction on documents and coinage, while real military and political power remained with the Mamluks. This Cairo Abbasid caliphal line continued until the Ottoman conquest of Egypt.