During his reign his brother Nizār—the man after whom the Nizārī Ismāʿīlī daʿwa based in Alamut and the other Ismāʿīlī fortresses is named—fled. Nizār made his way to Alexandria, where the emir Aftikīn and the city’s judge Ibn ʿAmmār backed him, pledged allegiance to him, and he held sway for a year. In 488 AH⦗1⦘ the Commander of the Armies al-Afḍal advanced against them and laid siege to the city. Aftikīn rode out to meet him, but al-Afḍal surprised him at night and routed him.

Al-Afḍal then returned, engaged them a second time, stormed the town by force, killed the judge along with a number of others, arrested Nizār and Aftikīn, slaughtered Aftikīn, and al-Mustaʿlī ordered a wall to be built over his brother Nizār, whereupon he died⦗2⦘.

During his reign the Bāṭinite heretics—the Ismāʿīlīs—increased in number; they waylaid returning caravans⦗3⦘, seized the fortress of Isfahān, murdered many leading figures and scholars, and set about the work of the dagger. Numerous shocking and extraordinary events occurred at their hands⦗4⦘.

On 17 Ṣafar 495 AH al-Mustaʿlī died. They placed his five-year-old son al-Āmir bi-Aḥkām Allāh Manṣūr on the throne, while real power remained with the Commander of the Armies al-Afḍal. It is said that he was secretly poisoned and killed.

74 – al-Āmir bi-Aḥkām Allāh Manṣūr ibn al-Mustaʿlī*

The ruler of Egypt, Abū ʿAlī Manṣūr ibn al-Mustaʿlī Aḥmad ibn al-Mustanṣir Maʿadd ibn al-Ẓāhir ibn al-Ḥākim, the Egyptian ʿUbaydid, Rāfiḍī tyrant.