Nizam al-Mulk
 Abu Ali Hasan ibn Ali Tusi (April 10 1018 – October 14 1092) better known by his honorific title of Nizam al-Mulk (Persian: نظام‌الملک‎ Order of the Realm) was a Persian scholar and vizier of the Seljuq Empire. He held near absolute power for 20 years after the assassination of Alp Arslan in 1072.