The Hasanids (Arabic: بنو حسن, romanized: Banū Ḥasan or حسنيون, Ḥasaniyyūn) are the descendants of Hasan ibn Ali, brother of Husayn ibn Ali and grandson of Muhammad.
They are a branch of the Alids (the descendants of Ali ibn Abi Talib), and one of the two most important branches of the ashrāf (the other being the descendants of Hasan's brother Husayn, the Husaynids).
[2] after the suppression of the latter, a Hasanid branch, the Idrisids, settled in northern Morocco.
[3] In Morocco, the term Hasani is particularly applied to the descendants of Muhammad al-Nafs al-Zakiyya, to distinguish them from the Idrisids.
[1] Notable Ḥasanid dynasties in the Muslim world include: