About Muḥammad Bāqir aṣ-Ṣadr
Muhammad Baqir al-Sadr (Arabic: محمد باقر الصدر, romanized: Muḥammad Bāqir aṣ-Ṣadr; March 1, 1935 – April 9, 1980), also known as al-Shahid al-Khamis (Arabic: الشهيد الخامس, romanized: al-Shahīd al-Khāmis, lit. 'the fifth martyr'), was an Iraqi Islamic scholar, philosopher, and the ideological founder of the Islamic Dawa Party. He was the father-in-law to Muqtada al-Sadr, a cousin of Muhammad Sadiq al-Sadr and Musa al-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. == Biography == === Early life and education === Muhammad Baqir al-Sadr was born in al-Kazimiya, Iraq, into the prominent al-Sadr family, which originated in Jabal Amel in present-day Lebanon. His father died in 1937, leaving the family in difficult economic circumstances. In 1945, the family relocated to the holy city of Najaf, where al-Sadr spent the remainder of his life. Al-Sadr was regarded as a child prodigy. By the age of ten, he was delivering lectures on Islamic history, and at eleven he had begun formal studies in logic.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.