About Imaam Ali at-Tayyib "Abi-l Qaasim" Imaam Mansoor "al-Amir Bi-Ihkamillah"
- 21st Shia Ismai'li Imaam
- Date of Ascension: 25th Shawwal 524 AH (7th October 1130 AD)
- Period of Imamate: ??
- Wilaadat (Birth): 4th Rabi ul-Aakhir 524 AH (23rd March 1130 AD)
- Wafaat (Death): ??
- Major Occultation (Ghaybat)