Seyed Mahdi Hosseini Shirazi

Grand Ayatollah Mirza Mahdi al-Husayni al-Shirazi, also known as Mirza Mahdi al-Shirazi, was a Shia marja. After the death of Abu al-Hasan Esfehani and Hossein Tabatabaei Qomi, Mirza Mahdi was considered to be the highest ranking cleric in Karbala, and one of the highest in Iraq, along with Muhsin al-Hakim and his second cousin once removed, Abd al-Hadi Shirazi in Najaf.