al-Amir bi-Ahkam Allah Mansur ibn al-Musta'li
Mansur ibn al-Musta'li, tenth Ubaydid caliph as al-Amir bi-Ahkam Allah, raised at five years old on his father's death in 495.
Reign · Fatimid Caliphate · no. 4 in the chain · 1101–1130 CE
Ruled the caliphate
Events of the reign
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Battle of al-Buhayra
Draft card for the Battle of al-Buhayra in 1130, the Almoravids' victory over Tamim ibn al-Walid near Tangier; its sources are not yet checked on the page.
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The Revolt of Nizar ibn al-Mustansir at Alexandria and Its Suppression in 495
In al-Musta'li's days his brother Nizar — namesake of the Nizari da'wa of Alamut — fled to Alexandria, whose people swore to him with the backing of its qadi Ibn Ammar and its governor Iftakin; al-Afdal b. Badr al-Jamali besieged them, beat Iftakin's sortie, then prevailed and carried both men back to Cairo, where Iftakin was slaughtered and Nizar was walled up and perished.