It is an incident that occurred when the local ruling family in Yamato Province, Kinai region, interfered with the dispute in Kyushu dynasty over `Tsukushi no kimi sachiyama,' an emperor of the Kyushu dynasty, who was taken prisoner and then returned home after being released from the Tang army during the previous year, and took control of the Japan islands.
前年に唐軍の捕虜から解放され帰国した九州王朝の天皇である「筑紫君薩夜麻」を巡る九州王朝内の内紛に畿内大和の豪族が介入し日本列島の覇権を得た事件である。