page_title: Al-Mustaʽli
hierarchical_section_title: Al-Mustaʽli
caption_attribution_description: English: Original caption: ISLAMIC, Fatimids. al-Musta'li billah. AH 487-495 / AD 1094-1101. AV Dinar (24mm, 4.43 g, 11h). Misr (al-Fustat) mint. Dated AH 493 (AD 1099/1100). Nicol 2421; Album 725.2; ICV 843. Good VF, lightly toned, wavy flan.
context_page_description: Abu'l-Qasim Ahmad ibn al-Mustansir, better known by his regnal name al-Mustaʽli Billah, was the ninth Fatimid caliph and the 19th imam of Mustaʽli Ismailism.
  His accession was engineered by his brother-in-law, the vizier al-Afdal Shahanshah, who was the de facto ruler of the state throughout his reign. Al-Musta'li's accession sidelined his oldest brother, Nizar, who in response rose in revolt, was defeated and executed. This caused a major split in the Isma'ili movement, with the Nizaris splitting off from the Fatimid-backed Musta'lis. During al-Musta'li's reign, the First Crusade arrived in the Levant, leading to the loss of Jerusalem and a major Fatimid defeat at the Battle of Ascalon.
context_section_description: Abu'l-Qasim Ahmad ibn al-Mustansir (Arabic: أبو القاسم أحمد بن المستنصر‎, romanized: Abū'l-Qāsim Aḥmad ibn al-Mustanṣir; 16 September 1074 – 12 December 1101), better known by his regnal name al-Mustaʽli Billah (Arabic: المستعلي بالله‎, romanized: al-Mustaʿlī bi'llāh), was the ninth Fatimid caliph and the 19th imam of Mustaʽli Ismailism. 
  His accession was engineered by his brother-in-law, the vizier al-Afdal Shahanshah, who was the de facto ruler of the state throughout his reign. Al-Musta'li's accession sidelined his oldest brother, Nizar, who in response rose in revolt, was defeated and executed. This caused a major split in the Isma'ili movement, with the Nizaris splitting off from the Fatimid-backed Musta'lis. During al-Musta'li's reign, the First Crusade arrived in the Levant, leading to the loss of Jerusalem and a major Fatimid defeat at the Battle of Ascalon.
caption: Gold dinar minted in Fustat in the name of al-Musta'li, 1099/1100
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