Al-Qasim ibn Hasan ibn Ali

Al-Qāsim ibn al-Ḥasan (Sha'ban 7, 47 AH / October 4, 667 CE in Medina – Muharram 10, 61 AH / October 10, 680 CE in Karbala) was the son of Hasan ibn Ali. He supported his uncle Husayn ibn Ali in fighting off the Umayyad forces during the Battle of Karbala where he was killed at the age of 13. Early life Qasim was born the son of Hasan ibn Ali, the second Imam, and his wife Umm Farwa. His father was the elder son of Ali ibn Abi Talib and Fatima. Qasim was thus a great-grandson of the Islamic prophet Muhammad, who was the father of Fatima. Death of Hasan ibn Ali Hasan ibn Ali, Qasim's father died on the 5th of Rabi al-Awwal 50 AH (2 April 670 CE) by Mu'awiya I due to poisoning.