Grandson of Prophet

Al-Hasan ibn Ali (625–670 CE) was the eldest grandson of Prophet Muhammad, son of Ali and Fatimah, and briefly caliph after his father's assassination in 661 CE. His negotiated settlement with Muawiyah, which ended the first Islamic civil war, was among the era's most consequential acts.

Al-Hussain ibn Ali (626–680 CE) was the younger grandson of Prophet Muhammad, son of Ali and Fatimah, and a central figure in early Islam. His death at the Battle of Karbala in 680 CE shaped the development of Shia Islam and left a lasting mark on Islamic memory across traditions.