Alp Arslan, Seljuk sultan (d. 1072)
Alp Arslan (honorific in Turkic meaning "Heroic or Great Lion"; in Persian: آلپ ارسلان; Arabic epithet: Diyā ad-Dunyā wa ad-Dīn Adud ad-Dawlah Abu Shujā' Muhammad Ālp Ārslan ibn Dawūd, Persian: ضياء الدنيا و الدين عضد الدولة ابو شجاع محمد آلپ ارسلان ابن داود; 20 January 1029 – 24 November 1072), real name: Muhammad bin Dawud Chaghri, was the second Sultan of the Seljuk Empire and great-grandson of Seljuk, the eponymous founder of the dynasty. He greatly expanded the Seljuk territory and consolidated his power, defeating rivals to south and northwest and his victory over the Byzantines at the Battle of Manzikert, in 1071, ushered in the Turkoman settlement of Anatolia. For his military prowess and fighting skills, he obtained the name Alp Arslan, which means "Heroic Lion" in Turkish.