Shihab al-Islam

Shihab al-Islam Abu'l-Mahasin Abd al-Razzaq, commonly known as Shihab al-Islam, was a Persian religious scholar and jurist, who served as the vizier of the Seljuk sultan Ahmad Sanjar ((r. 1118 – 1157)) from April 1118 until his death in March 1121. He was the son of Abu'l-Qasim Abdullah, the brother of the distinguished vizier Nizam al-Mulk (died 1092).