Seljuq Empire
Ahmad Sanjar (Persian: احمد سنجر; full name: "Muizz ad-Dunya wa ad-Din Adud ad-Dawlah Abul-Harith Ahmad Sanjar ibn Malik-Shah") ("b". 1085 – "d". 8 May 1157) was the Seljuq ruler of Khorasan from 1097 until in 1118, when he became the Sultan of the Seljuq Empire, which he ruled until his death in 1157.