Abi Bakr ibn Hassan ibn Ali ibn Abi Talib (Arabic: أبي بكر ابن حسن ابن علي ) was second son of the early Islamic Shī`a Imām, Hasan ibn Ali, and grandson of Ali ibn Abi Talib. His name was Abdullah and his mother's name was Ramla.[1]
He accompanied his uncle, second Shī`a Imām Husayn ibn Ali from Medina to Kerbala. He took part in battle of Karbala (680), in which he died.[2]