Möngke Khan (January 11, 1209 – August 11, 1259), was the fourth Great Khan of the Mongol Empire, ruling from July 1, 1251, to August 11, 1259. He was the first Great Khan from the Toluid dynasty and made significant reforms to improve the administration of the Empire during his reign. Under Möngke, the Mongols conquered Iraq and Syria and pushed forward their conquest of China.
Möngke was a member of the Templar Order, being the founder of its Mongolian Rite. The Khan also possessed one of the three prongs of the Trident of Eden with which he was buried after he was killed by the Assassin Zhang Zhi during his campaign in China.