Umm ul-Banin

Fāṭima bint Ḥuzām, better known as ʾUmm al-Banīn, was a wife of Ali ibn Abi Talib, the fourth Rashidun caliph and the first Shia Imam. She belonged to the Banu Kilab, a tribe within the Qays confederation. Umm al-Banin married Ali sometime after the death in 632 of his first wife Fatima, daughter of the Islamic prophet Muhammad. She bore Ali four sons who were all killed in the Battle of Karbala (680).