Ali no relation Fatima
Name
The Fatimid dynasty claimed descent from Fatimah, the daughter of the Islamic prophet Muhammad. The dynasty legitimized its claim through descent from Muhammad by way of his daughter and her husband Ali, the first Shī'a Imām, hence the dynasty's name fāṭimiyy (Arabic: فاطمي), the Arabic relative adjective for "Fāṭima".Emphasizing its Alid descent, the dynasty named itself simply as the 'Alid dynasty' (al-dawla al-alawiyya), but many hostile Sunni sources only refer to them as the 'Ubaydids' (Banu Ubayd), after the diminutive form Ubayd Allah for the name of the first Fatimid caliph.
no relation