Ariq Böke (after 1219–1266), the components of his name also spelled
Arigh,
Arik and
Bukha,
Buka (; Chinese: 阿里不哥), was the seventh and youngest son of
Tolui (1192–1232), a son of
Genghis Khan. After the death of his brother the Great Khan
Möngke, Ariq Böke claimed the title of the
Great Khan of the
Mongol Empire and briefly took power while his brothers
Kublai (more commonly known as
Kublai Khan) and
Hulagu (more commonly known as
Hulagu Khan) were absent from
Mongolia homeland. When Kublai returned for an election in 1260, rival factions could not agree, and elected simultaneous claimants Kublai and Ariq Böke to the throne, resulting in the
Toluid Civil War that
fragmented the Mongol Empire. Ariq Böke was supported by the traditionalists of the Mongol Empire, while his brother Kublai Khan was supported by the senior princes of
North China and
Manchuria.