The mikuriya of the Imperial Family were limited to Kinai (the five provinces in the immediate vicinity of Kyoto) and provinces nearby, and there is the opinion that Kugonin and their leaders were the origin of warriors in western Japan including the Watanabe-to seen as a typical model for them.
天皇家の御厨は畿内近国に限られており、特権を獲得した供御人やその統括者は渡辺党がその典型であるように西日本における武士の淵源となったとする見解もある。