With respect to the 'view that the cause of the incident was transference of the fief,' as only one historical material, there is Nobutaka ODA's military order dated May 14, nineteen days before the Incident, that imposed military service on local lords and powerful local clans in Tanba, and it became the subject of academic arguments whether or not kao (written seal mark) on this military order is genuine.
このうち「国替え説」は、唯一史料として変19日前の5月14日付けの丹波国人、土豪への軍役を課した織田信孝の軍令書が存在し、この人見家文書の花押の真偽を巡る学問的な論議となっている。