Muhammad Baqir al-Sadr was an Iraqi Shia cleric, philosopher, and ideological founder of the Islamic Dawa Party, born in al-Kazimiya, Iraq. He was father-in-law to Muqtada al-Sadr, a cousin of Muhammad Sadeq al-Sadr and Imam Musa as-Sadr. His father Haydar al-Sadr was a well-respected high-ranking Shi'a cleric
