Al-Amir bi-Ahkam Allah

Al-Āmir bi'Aḥkāmi l-Lah (1096–1130) ( ) was the tenth Fatimid Caliph (1101–1130). Like his father al-Musta‘lī (1094–1101), al-Āmir was controlled by the regent al-Afdal Shahanshah (1094–1121) and had little influence in political matters. However, after the overthrow of al-Afdal in 1121 he managed to gain control of government. His reign was marred by the loss of Tyre to the Crusaders , as well as by the continuation of the Ismā‘ilī Shī‘ah schism between the Nizārī and the Musta‘liyyah . This conflict climaxed in the assassination of al-Āmir on October 7, 1130. His death led to further power struggles, through which Al-Hafiz , a cousin of al-Āmir, eventually came to power, while the Taiyabiah claimed that Taiyab abi al-Qasim , the four year old son of al-Amir was al-Āmir's rightful successor as Imām.

Manṣūr al-Āmir bi'Aḥkāmi’l-Lāh (31 December 1096 – 1130 (3rd Zulqada 524 AH, Tuesday ) ( ) was the tenth Fatimid Caliph (1101–1130), and recognised as the 20th Imam by the Mustaali Ismaili Shia sect. Like his father al-Musta‘lī (1094–1101), al-Āmir was controlled by the regent al-Afdal Shahanshah (1094–1121) and had little influence in political matters. However, after the overthrow of al-Afdal in 1121 AD he managed to gain control of government. His reign was marred by the loss of Tyre to the Crusaders , as well as by the continuation of the schism between the Nizari and the Mustaali . This conflict climaxed in the assassination of al-Amir on Tuesday, 3rd Zu-l-qada, 524 AH / 7 October 1130 AD.

Abu Ali al-Mansur ibn al-Musta'li ( ; 31 December 1096 – 7 October 1130), better known by his regnal name al-Amir bi-Ahkam Allah ( ) was the tenth Fatimid Caliph , and the 20th Imam of Musta'li Isma'ili sect of Shia Islam , from 1101 to his death in 1130. Until 1121, he was a de facto puppet ruler of his uncle and father-in-law, the vizier al-Afdal Shahanshah . When the latter was murdered, possibly with al-Amir's connivance, the caliph appointed al-Ma'mun al-Bata'ihi as vizier, but took an increasing role in government, and after 1125 ruled without a vizier. His reign saw the progressive loss of all Fatimid strongholds in Palestine to the Crusaders apart from Ascalon . His assassination in 1130, leaving only his infant son al-Tayyib as heir, 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.

Fatimid caliph and imam (1096–1130) Abū ʿAlī al-Manṣūr ibn al-Mustaʿlī ( ‎; 31 December 1096 – 7 October 1130), better known by his regnal name al-Āmir bi-Aḥkām Allāh ( ) was the tenth Fatimid caliph , and the 20th imam of the Musta'li Isma'ili sect of Shia Islam , from 1101 to his death in 1130. Until 1121, he was a de facto puppet of his uncle and father-in-law, the vizier al-Afdal Shahanshah . When the latter was murdered, possibly with al-Amir's connivance, he appointed al-Ma'mun al-Bata'ihi as his vizier, but took an increasing direct role in government, and after 1125 ruled without a vizier. His reign saw the progressive loss of all Fatimid strongholds in Palestine to the Crusaders , apart from Ascalon . His assassination in 1130, leaving only his infant son al-Tayyib as heir, 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.