Abu Ali al-Mansur ibn al-Musta'li, better known by his regnal name al-Amir bi-Ahkam Allah was the tenth Fatimid caliph, ruling from 1101 to his death in 1130, and the 20th imam of the Musta'li Isma'il
Gold dinar of al-Amir, minted in Cairo, 514 AH (1119/20 CE)
Abūʾl-Maymūn ʿAbd al-Majīd ibn Muḥammad ibn al-Mustanṣir, better known by his regnal name as al-Ḥāfiẓ li-Dīn Allāh, was the eleventh Fatimid caliph, ruling over Egypt from 1132 to his death in 1149, a
Al-Amir bi-Ahkam Allah
…threw the Fatimid regime into a succession struggle during which it almost collapsed. Fatimid rule was restored with the succession of al-Amir's cousin al-Hafiz li-Din Allah in 1132, which led to the division of Musta'li Isma'ilism into the rival Hafizi and Tayyibi branches. The future al-Amir was born on 31 December 1096…
Gold dinar of al-Hafiz, minted at Alexandria in 1149
The Bab al-Nasr gate in Cairo, photographed in 1867