Gegeen Khan, born Shidebala (碩德八剌), was emperor of the Yuan dynasty from 1320 to 1323 and the ninth Great Khan of the Mongols. He succeeded his father, Ayurbarwada, at about seventeen, and from 1321 his reign used the era name Zhizhi (至治, 1321–1323). His temple name is Yingzong (英宗).
For his first two years real power lay with his grandmother Dagi and her minister Temüder. Once both had died, he and his grand councillor Baiju pressed ahead with reforms on Confucian lines, including a new law code. Those reforms threatened powerful interests, and in 1323, aged about twenty, he was murdered at Nanpo, the first Yuan emperor to be assassinated.






