Grand Ayatollah Bashir Najafi is one of the most senior living mujtahideen.Grand Ayatollah Syed Muhammad Rouhani(1920-1997) was one of the leading mujtahid of his time.His younger brother is also a marja e taqlid (Grand Ayatollah Sadiq Rouhani).Ayatollah Sheikh Sadra Baadkoubei was one of the teachers of Hawza illmiya Najaf and was a teacher of Ayatollah Kashmiri,GA Musa Sadr etc.