Abu Al-Qasim Al-Khoei

Abu al-Qasim al-Khoei (November 19, 1899 – August 8, 1992) was one of the most influential Twelver Shia Islamic scholars (marja'), and the predecessor to Ali al-Sistani. He was the spiritual leader of much of the Shia world until his death in 1992. He was succeeded by Ali al-Sistani, his former student, whereby many of his followers became followers of Al Sistani and foundations previously headed by Khoei were handed to Al Sistani.