List of Isma'ili imams

States People Centers Other This is a list of the Imams as recognized by the different sub-sects of the Ismai'li sect of Shia Islam.

After Ali ibn Husayn Zayn al-Abidin, the Zaydis consider Zayd ibn Ali to be their next Imam rather than his older brother Muhammad al-Baqir who is considered the next Imam by the Isma'ili and Twelvers.

Abdallah al-Mahdi Billah eventually became the first Fatimid Caliph with his empire spanning Egypt and the eastern Maghreb.

The regent Malik al-Afdal placed Mustansir's younger son Al-Musta'li Billah on the throne.

This was contested by the elder son Nizar al-Mustafa li-Din Allah, who was defeated and died in prison.