His name was Ali, however he was not the only son of Husayn who named Ali. There were two other Ali who were killed in Karbala. One of them was an infant, referred to as Ali Ali al-Asghar (Younger Ali) in Shia literature; the other one was Ali al-Akbar (Elder Ali). Some Shia historians maintain that Zayn al-Abidin was Ali al-Awsat(the Middle Ali) while his oldest brother was killed along with the infant. Some others reverse the position of the two older brothers.