Sayyid Muhammad Ali Hosseini Shahrestani known as Hibatuddin Shahrestani, was an Iraqi Shiite cleric and an Islamic scholar and Mujtahid, Quran exegete.

Muhammad Baqir al-Sadr, also known as al-Shahīd al-Khāmis, was an Iraqi philosopher, and the ideological founder of the Islamic Dawa Party, born in al-Kadhimiya, 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. His lineage can be traced back to Muhammad through the seventh Shia Imam Musa al-Kazim. Muhammad Baqir al-Sadr was executed in 1980 by the regime of Saddam Hussein along with his sister, Amina Sadr bint al-Huda.