Abū Yahya Zakariya al-Musta'sim bi'llah (; died 1389) was the eighth

Abbasid caliph The Abbasid caliphs were the holders of the Islamic title of caliph who were members of the Abbasid dynasty, a branch of the Quraysh tribe descended from the uncle of the Islamic prophet Muhammad, Al-Abbas ibn Abd al-Muttalib. The family came ...

Cairo Cairo ( ; , ) is the Capital city, capital and largest city of Egypt and the Cairo Governorate, being home to more than 10 million people. It is also part of the List of urban agglomerations in Africa, largest urban agglomeration in Africa, L ...

under the tutelage of the

Mamluk Sultanate The Mamluk Sultanate (), also known as Mamluk Egypt or the Mamluk Empire, was a state that ruled Egypt, the Levant and the Hejaz from the mid-13th to early 16th centuries, with Cairo as its capital. It was ruled by a military caste of mamluks ...

. He served twice: first in 1377, then again in 1386–1389. Al-Musta'sim was the son of al-Wathiq I (the fourth Caliph of Cairo). His given name was Zakariya and his Kunya was Abu Yahya. He was first installed in the office in 1377 for a short period of time, after

al-Mutawakkil I Abu Abd Allah Muhammad ibn Abi Bakr (died 9 January 1406), commonly known as al-Mutawakkil I, was the 44th Abbasid caliphs of Cairo, Abbasid caliph and the seventh one to rule in Cairo, reigning from 1362 to 1383 and then from 1389 to 1406, unde ...

was deposed. Al-Musta'sim was also deposed by Mamluk sultan and al-Mutawakkil I was again installed as caliph of Cairo by Mamluks. After few years, in 1386 al-Musta'sim was again installed as caliph of Cairo for the Mamluk Sultanate. He remained in the office from 1386 to 1389 and he was again succeeded by

in 1389.

Bibliography

* * 1389 deaths Cairo-era Abbasid caliphs 14th-century Abbasid caliphs Year of birth unknown Sons of Abbasid caliphs Long stubs with short prose {{MEast-royal-stub