Al-Mustansir (Baghdad)

For the Mamluk-installed caliph in Cairo, see Al-Mustansir (Cairo).
Abû Ja`far al-Mustansir bi-llah al-Mansûr ben az-Zâhir
ابو جعفر المستنصر باللہ المنصور بن الظاھر
36th Caliph of the Abbasid Caliphate
Abbasid Caliph in Baghdad
Reign 10 July 1226 – 5 December 1242
Predecessor az-Zahir
Successor al-Musta'sim
Born 17 February 1192 [1]
Baghdad, Abbasid Caliphate, now Iraq
Died 5 December 1242 (aged 50)
Baghdad, Abbasid Caliphate, now Iraq
Consort Shahan
Issue Al-Musta'sim
Father az-Zahir
Religion Islam

Al-Mustansir Bi'llah (full name:Abû Ja`far al-Mustansir bi-llah al-Mansûr ben az-Zâhir[2] Surname Al-Mustansir)[3] was born in Baghdad on 1192. On his father's death in 1226 he has succeeded his father Az-Zahir as the thirty-sixth Abbasid Caliph. Al-Mustansir died on 5 December 1242.[4] His son Al-Musta'sim succeeded him as the caliph.

Mustansiriya Madrasah, was established in 1227 (or 1232/34 A.D. by some accounts) by the Abbasid Caliph Al-Mustansir and was one of the oldest universities in the world. Its building, located on the left bank of the Tigris River, survived the Mongol invasion and has been restored.


  1. Ibn Kathir: Albidayah Wa-Nahaya, V. XIII. p. 147
  2. Arabic : abū jaʿfar al-mustanṣir bi-llāh al-manṣūr ben aẓ-ẓāhir,
    أبو جعفر المسنتصر بالله المنصور بن محمد الظاهر
  3. Arabic : Al-Mustanṣir, المسنتصر بالله
  4. 10 Jumada ath-thani 640 A.H.


Al-Mustansir (Baghdad)
Cadet branch of the Banu Hashim
Born: 17 February 1192 Died: 5 December 1242
Sunni Islam titles
Preceded by
Caliph of Islam
Abbasid Caliph

10 July 1226 – 5 December 1242
Succeeded by
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