Billah (Arabic : بالله, romanized: bi-ʾllāh) is an Arabic phrase meaning with God or through God. It is used in various standard sayings, such as the Hawqala and the Ta'awwudh. It is also often used as a component of compound personal proper names, particularly as regnal names by caliphs and other rulers when it might be seen as a counterpart of the Christian usage by the grace of God .[ citation needed ] It is used for example as follows:
Abū Isḥāq Muḥammad ibn al-Wāthiq, better known by his regnal name Al-Muhtadī bi-'llāh, was the Caliph of the Abbasid Caliphate from July 869 to June 870, during the "Anarchy at Samarra".
Abu Mansur Muhammad ibn Ahmad al-Mu'tadid, usually known simply by his regnal title Al-Qahir bi'llah, was the nineteenth Caliph of the Abbasid Caliphate from 932 to 934. He was born 286 AH and died 339 AH.
Abu’l-Qāsim ʿAbdallāh ibn Ali, better known by his regnal name al-Mustakfī bi’llāh was the Abbasid caliph in Baghdad from 944 to 946.
Abu'l-Abbas Ahmad ibn Abdallah al-Muqtadi usually known simply by his regnal name Al-Mustazhir billah was the Abbasid Caliph in Baghdad from 1094 to 1118. He succeeded his father al-Muqtadi as the Caliph. The main and important events during his reign are; appearance of the First Crusade in Western Syria, Muslim protest in Baghdad against crusaders, His efforts to help Mawdud to organized several expeditions to reconquer lands from the Crusaders.
Abu Mansur al-Faḍl ibn Ahmad al-Mustazhir better known by his regnal name Al-Mustarshid Billah was the Abbasid caliph in Baghdad from 1118 to 1135. He was son of his predecessor, caliph al-Mustazhir. He succeeded his father in the year 1118 as the Abbasid caliph. He was also an Arabic poet.
Abu Ja'far al-Mansur ibn al-Faḍl al-Mustarshid bi'llah usually known by his regnal name Al-Rashid bi'llah was the Abbasid caliph in Baghdad from 1135 to 1136. He succeeded his father al-Mustarshid in the year 1135. He ruled for just one year from 1135 up to his deposition on 17 August 1136. When the populace of Baghdad rose in revolt against him.
Al-Mustansir, more fully al-Mustansir billah, is a Muslim regnal surname and may refer to:
Abu Ahmad Abdallah ibn al-Mustansir Billah, better known by his regnal name al-Musta'sim Billah was the 37th and last caliph of the Abbasid dynasty, ruling from 1242 until his death in 1258. He was the last caliph to rule from Baghdad.
The Musta‘lī are a branch of Isma'ilism named for their acceptance of al-Musta'li as the legitimate nineteenth Fatimid caliph and legitimate successor to his father, al-Mustansir Billah. In contrast, the Nizari—the other living branch of Ismailism, presently led by Aga Khan IV—believe the nineteenth caliph was al-Musta'li's elder brother, Nizar. Isma'ilism is a branch of Shia Islam.
Abu al-Qasim Ahmad ibn al-Mustansir, better known by his regnal name al-Musta'li Billah, was the ninth Fatimid caliph and the nineteenth imam of Mustaʽli Ismailism.
Al-Wathiq I, was the fourth Abbasid caliph seated in Cairo under the Mamluk Sultanate between 1340 and 1341.
Abū Yahya Zakariya al-Musta'sim bi'llah, was the eighth Abbasid caliph of Cairo under the tutelage of the Mamluk Sultanate. He served twice: first in 1377, then again in 1386–1389.
Abu’l-Faḍl Abbas Al-Musta'in Billah was the tenth "shadow" Abbasid caliph of Cairo, reigning under the tutelage of the Mamluk sultans from 1406 to 1414. He was the only Cairo-based caliph to hold political power as Sultan of Egypt, albeit for only six months in 1412. All the other Cairene caliphs who preceded or succeeded him were spiritual heads lacking any temporal power.
Al-Mustansir Bi'llah, was the Caliph of the Abbasid dynasty from 1226 to 1242. He succeeded Caliph Az-Zahir in the year 1226 and was the penultimate caliph to rule from Baghdad.
Al-Musta'in Billah was the regnal name of the twelfth Abbasid Caliph ruling from 862 to 866.