. He was the son of the Ilkhan ruler Arghun, brother and successor of Mahmud Ghazan, and great-grandson of the Ilkhanate founder Hulagu. Islamic conversion Oljeitu was baptised as a Christian and received the name Nicholas after Pope Nicholas IV. In his youth he at first converted to Buddhism but then to Sunni Islam together with his brother Ghazan. He later converted to Shi'a Islam after coming into contact with Shi'a scholars. He changed his first name to the Islamic name Muhammad. Some of his… (More on Oljeitu)