Ali ibn Musa al-Ridha

Ali ibn Musa al-Ridha was born in Medina around 766 CE into the prominent Shia lineage as the son of Musa al-Kazim, the seventh Imam. He lived during the Abbasid Caliphate, witnessing the reigns of Harun al-Rashid and his sons al-Amin and al-Mamun. Known for his deep knowledge and piety, he succeeded his father as the eighth Imam in 799 CE. Al-Mamun appointed him as heir apparent in 817 CE, a political move that sparked opposition and unrest. Al-Ridha accepted the position on the condition of non-interference in governance. He died mysteriously in 818 CE in Tus, with suspicions surrounding his death linked to Abbasid politics. His shrine in Mashhad, Iran, became a major pilgrimage site.