زيد بن علي
al-Modarresi was born into a distinguished Shia religious family in Karbala in Iraq. His father is Ayatollah Sayyid Muhammad-Kadhim al-Modarresi, the grandson of grand Ayatollah Sayyid Muhammad-Baqir Golpayegani (also known as "Jorfadiqani"). His mother is the daughter of grand Ayatollah Sayyid Mahdi al-Shirazi. He claims descent from Zayd ibn Ali (died c. 740 AD), the great-great-grandson of the Islamic prophet, Muhammad.