Abūʾl-Maymūn ʿAbd al-Majīd ibn Muḥammad ibn al-Mustanṣir
Abū ʿAlī al-Manṣūr al-Ḥākim
Abū Tamīm Ma'add al-Mu'izz li-Dīn Allāh
Abū Mansūr Nizār al-ʿAzīz
Answer
Al-Hafiz's full name was Abūʾl-Maymūn ʿAbd al-Majīd ibn Muḥammad ibn al-Mustanṣir. He was the eleventh Fatimid caliph and the 21st imam of Hafizi Isma'ilism.
Unraveling the Reign of Al-Hafiz: A Journey through the Fatimid Dynasty's Golden Era (1132-1149)