Al-Mustansir (Arabic: المستنصر بالله الثاني) Abu al-Qasim Ahmad was a member of the Abbasid house who was imprisoned by his nephew the Caliph al-Musta'sim in Baghdad. Following the sack of Baghdad by the Mongols in 1258, he escaped to the Arab tribes in the desert, where he hid out for a couple of years, until the Mamluks drove the Mongols from Syria in 1260. After making his way to Cairo, Mamluk Egypt, al-Mustansir was installed as Caliph there by the Mamluk Sultan Baybars I in 1261. He was sent with an army to the east to recover Baghdad, but was killed in a Mongol ambush near Hīt (modern Iraq) in 1261, and was succeeded by his rather distant Abbasid kinsman (and former rival caliph, having been proclaimed by the ruler of Aleppo) Al-Hakim I. Though he was not the direct ancestor of any of them, the line of Cairo caliphs he founded lasted until the Ottoman conquest of Egypt in 1517, but they were little more than religious figureheads for the Mamluks.
المستنصر بالله الثاني
|38th Caliph of the Abbasid Caliphate
1st Abbasid Caliph in Cairo
|Tenure||13 June 1261– 28 November 1261|
as Abbasid Caliph in Baghdad
|Died||28 November 1261|
|Father||Az-Zahir (Abbasid caliph)|
- Amitai-Preisss, Reuven. Mongols and Mamluks: The Mamluk-Ilkhanid War, 1260-1281. Cambridge: Cambridge University Press, 1995. Pp. 56-60, 62.
- Garcin, Jean-Claude (1967). "Histoire, opposition, politique et piétisme traditionaliste dans le Ḥusn al Muḥādarat de Suyûti" [History, opposition, politics and traditionalistic pietism in Suyuti's Ḥusn al Muḥādarat] (PDF). Annales Islamologiques (in French). Institut Français d'Archéologie Orientale. 7: 33–90. Archived from the original (PDF, 14.62 MB) on 2011-07-24. Retrieved 2010-07-22.
- Glubb, John Bagot. Soldiers of Fortune: The Story of the Mamlukes. New York: Dorset Press, 1988. Pp. 66, 73-75.
- Holt, P. M. (1984). "Some Observations on the 'Abbāsid Caliphate of Cairo". Bulletin of the School of Oriental and African Studies. University of London. 47 (3): 501–507. doi:10.1017/s0041977x00113710. JSTOR 618882. (Subscription required (. ))
Al-Mustansir (Cairo)Born: ? Died: 28 November 1261
|Sunni Islam titles|
Title last held byAl-Musta'sim
|Caliph of Islam
13 June 1261 – 28 November 1261