Ariq Böke

Ariq Böke (c. 1219–1266) was the youngest son of Tolui and Sorghaghtani Beki, grandson of Genghis Khan. After Möngke died in August 1259, Ariq Böke guarded the Mongol capital Karakorum, and in April 1260 he was proclaimed great khan there, weeks after Kublai's enthronement at Kaiping.

The rival elections opened the Toluid Civil War, pitting steppe traditionalists behind him against Kublai's North Chinese princes. Driven into the Ili valley, he surrendered to Kublai in August 1264, was pardoned, and died at Karakorum in 1266.