A further advanced theory says that he came from the Okinaga clan, a family in Omi Province which branched out from the Imperial family (as a result of demotion from nobility to subject) and he wrested the throne by repressing the Yamato sovereignty by military power.
さらに論を進め、近江の皇別氏族（皇族が臣籍降下して誕生した氏族）息長氏（おきながうじ）の出身と見なし、大和王権を武力制圧して王位を簒奪したとする説も出された。