Al-Mustansir I

Al-Mānsūr al-Mustansir bi-llah
المنصور المستنصر بالله
Khalīfah
Amir al-Mu'minin
Dirham of al-Mustansir
36th Caliph of the Abbasid Caliphate
Abbasid Caliph in Baghdad
Reign10 July 1226 – 5 December 1242
Predecessoral-Zahir
Successoral-Musta'sim
Born17 February 1192
Baghdad, Abbasid Caliphate, (now Iraq)
Died5 December 1242 (aged 50)
Baghdad, Abbasid Caliphate
Burial
Baghdad
ConsortShahan
Hajir
IssueAl-Musta'sim
Names
Abu Ja`far al-Mansūr al-Mustansir bi-llah ibn az-Zâhir
DynastyAbbasid
Fatheral-Zāhīr
MotherZahra
ReligionSunni Islam

Abu Ja'far al-Mansur ibn al-Zahir (17 February 1192 – 2 December 1242), commonly known as al-Mustansir I, was the 36th Abbasid caliph, ruling from 1226 to 1242. He succeeded al-Zahir as caliph in the year 1226, and was the penultimate caliph to rule from Baghdad. He was the second-to-last caliph of the Abbasid Caliphate.