Abū al-Baqa Hamza Al-Qa'im (Arabic: ابو الباقة حمزة القائم بأمر الله; died 1458) was the thirteenth Abbasid caliph of Cairo for the Mamluk Sultanate between 1451 and 1455.
[1] Inal, at age 73, was thereby proclaimed sultan and entered the citadel later that week, capturing Uthman.
On 15 June 1455 Inal faced a mutiny by roughly 500 of his Circassian mamluks after assembling them to launch an expedition against Bedouin tribesmen invading al-Buhayra Province (the Delta region.
)[3][4] Inal had rejected their requests for customary camels as a result of the poor economic conditions of the sultanate.
They attempted to assassinate Yunus al-Aqba'i, Inal's executive secretary, as he departed from the Cairo Citadel, but his bodyguards warded off the attackers, wounding a few of them.
[3] The mutineers were then joined by the recently dismissed Zahiris (the faction which Inal originally hailed from) and subsequently besieged the citadel, demanding higher salaries and the handing over of Yunus.
All mamluks with the exception of the royal guard were removed from their positions in citadel and some of the mutineers were either imprisoned or exiled.