al-Musta'sim bi'llah Zakariya ibn Ibrahim

Twice-set Cairo caliph: fifteen days under Aynbak in 779 'without bay'a or consensus', then under Barquq till 791 when the repenting sultan restored al-Mutawakkil; died deposed at home.

Reign · Abbasid Caliphate of Cairo · no. 8 in the chain · 1377–1391 CE

Ruled the caliphate

Events of the reign

The museum record for this caliph