Ali al-Akbar ibn Husayn, son of Al-Husayn
Ali al-Akbar ibn Al-Husayn (Arabic: عَلِيّ ٱلْأَكْبَر ٱبْن ٱلْحُسَيْن, ʿAlīy al-ʾAkbar ibn al-Ḥusayn), commonly known as simply Ali al-Akbar, was the son of Al-Husayn ibn Ali, the third Imam, and Umm Layla. He was killed at the age of 18 on the day of Ashura, in the Battle of Karbala. According to Jean Calmard writing in Iranica, ‘Ali al-Akbar's reputation as a valiant warrior of the Household of Muhammad might have preceded that of Al-‘Abbas ibn ‘Ali.