Anūshirwān b. Khālid , a sixth/twelfth-century Persian Shīʿī, was an important functionary in the period of the Great Saljūqs of Iran and Iraq. He began his career as ʿāriḍ al-jaysh during the sultanate of Muḥammad b. Malikshāh (498–511/1105–18), who appointed him mustawfī and t…