al-Musta'in Billah, Cairo Abbasid

المستعين بالله العباسي

c. 1430 CE · 833 AH

al-Musta'in Billah, Abbasid caliph of Cairo from Rajab 808 — briefly sultan as well until al-Mu'ayyad deposed him for his brother al-Mu'tadid Dawud; held at Alexandria, refused repatriation for love of the city and its trade profits, and died there a plague martyr in 833 1.

Depth

At a glance

Roles
Caliph
Era
The Mongol and Post-Mongol Era
Region
Egypt & Nile
Review
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Life in time

135013751400142514501475150015251550 c. c. c. c.
The Crusades, Ayyubids and Mamluks · The Gunpowder Empires · The Mongol and Post-Mongol Era Contemporaries: Abd al-Baqi Yazdi · Abd al-Rahman al-Tha'alibi · Taj al-Din 'Abd al-Wahhab ibn 'Arabshah · Abu Zayyan Muhammad V, Marinid Sultan · Shihab al-Din Ibn 'Ubba al-Maqdisi

Al-Mustaʿin bi-Llah, the Abbasid

Commander of the Faithful al-Mustaʿin Abu al-Fadl al-ʿAbbas ibn al-Mutawakkil ibn al-Muʿtadid. He was established in the caliphate in Rajab 808 AH by a charge from his father. He was also installed as a sultan alongside the caliphate for a time, until al-Muʾayyad became sultan. Al-Muʾayyad then removed him from the caliphate, installed his brother Dawud in it, gave him the title al-Muʿtadid, and imprisoned al-Mustaʿin in Alexandria. He remained there until Tatar, who was speaking in the realm, sent for his release and gave him leave to come to Cairo. He chose to remain in Alexandria, because he found it pleasant and gained a great deal of money from trade.

He died there as a martyr of the plague in 833 AH and left behind a son, Jaʿdi 1.

Sources

  1. Shadharat al-Dhahab — Ibn al-Imad al-Hanbali , p. 203
Cite this page

islam.museum contributors. “al-Musta'in Billah, Cairo Abbasid”. islam.museum, https://islam.museum/en/person/al-mustain-billah-abbasid/. CC BY-SA 4.0. Last updated 2026-10-18.

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