Imam al-Hadi

Imam al-Hadi (also known as Ali ibn Muhammad or Abu al-Hasan III) was the tenth of the Twelve Imams, a line of holy figures in Shia Islam. He was the son of Imam al-Taqi. After his death due to poisoning at the hands of the Sunni Caliph, he was succeeded by his son Imam al-Askari.