Ögedei Khan, (Ögedei; also Ogotai or Oktay, c. 1186 – 1241), was the third son of Genghis Khan and second Great Khan (Khagan) of the Mongol Empire by succeeding his father. He continued the expansion of the empire that his father had begun, and was a world figure when the Mongol Empire reached its furthest extent west and south during the invasions of Europe and Asia. Like all of Genghis' primary sons, he participated extensively in conquests in China, Iran and Central Asia. Bac… (More on Ogedei)