The Isandarnāma (Book of Alexander) is a semi-popular Persian prose epic romance that was composed in the eleventh century and mainly used for entertainment. It also contains elements of the Persian polite literary tradition. It provides interesting social and political information about Iran during the period of its compilation. Kingship is central to the narrative. In the early eleventh and twelfth centuries A. D., the Iranian concept of kingship consisted of both the pre-Islamic and Islamic notions of a ruler. Alexander represents the twofold model of the Muslim ruler: that of the prophet king and that of the ghāzï king. In the Iskandarnāma, Iranian kingship is interwoven with the Muslm profile of the Greco-Iranian hero Alexander. The role of Islamic folklore and the Qisas al-anbiyā´ tradition is considerable in the narrative and the hero´s Muslim identity is primarily characterized by the Qur´anic concepts of the "double-horned one", the Muslim Conqueror, and the Jihād Warrior. On the whole, this analysis highlights the importance of the Iskandarnāma as a vital source for understanding the image of kingship in the Ghaznavid and Saljūq eras.