List of Famous people with last name Billah
Al-Aziz Billah
Abu Mansur Nizar, known by his regnal name as al-Aziz Billah, was the fifth caliph of the Fatimid dynasty, from 975 to his death in 996.
Abdullah al-Mahdi Billah
Abū Muḥammad ʿAbd Allāh/ʿUbayd Allāh ibn al-Ḥusayn, 873 – 4 March 934, better known by his regnal name al-Mahdi Billah, was the founder of the Isma'ili Fatimid Caliphate, the only major Shi'a caliphate in Islamic history, and the eleventh Imam of the Isma'ili faith.
Al-Mansur Billah
Abu Tahir Isma'il, better known by his regnal name al-Mansur bi-Nasr Allah, was the third caliph of the Fatimid Caliphate in Ifriqiya, ruling from 946 until his death. He presided over a period of crisis, having to confront the large-scale Kharijite rebellion of Abu Yazid. He succeeded in suppressing the revolt and restoring the stability of the Fatimid regime.