Ghazan, Mongol ruler of the Ilkhanate (d. 1304)
Mahmud Ghazan (5 November 1271 – 11 May 1304) (Persian: غازان خان, Ghazan Khan, sometimes archaically spelled as Casanus by the Westerners) was the seventh ruler of the Mongol Empire's Ilkhanate division in modern-day Iran from 1295 to 1304. He was the son of Arghun, grandson of Abaqa Khan and great-grandson of Hulagu Khan, continuing a long line of rulers who were direct descendants of Genghis Khan. Considered the most prominent of the Ilkhans, he is perhaps best known for converting to Islam and meeting Imam Ibn Taymiyya in 1295 when he took the throne, marking a turning point for the dominant religion of the Mongols in Western Asia (Iran, Iraq, Anatolia and Transcaucasia). One of his many principal wives was Kököchin, a Mongol princess (originally betrothed to Ghazan's father Arghun before his death) sent by his great-uncle Kublai Khan.
Military conflicts during Ghazan's reign included war with the Egyptian Mamluks for control of Syria, and battles with the Turko-Mongol Chagatai Khanate. Ghazan also pursued diplomatic contacts with Europe, continuing his predecessors' unsuccessful attempts at forming a Franco-Mongol alliance. A man of high culture, Ghazan spoke multiple languages, had many hobbies, and reformed many elements of the Ilkhanate, especially in the matter of standardizing currency and fiscal policy.