Ariwara in Yamato Province and Uji in Yamashiro Province were two candidates introduced as divergent views in the "Hojo Godaiki" (History of 5 generations of the Hojo clan) but did not become prevailing theories.
大和在原説と山城宇治説は『北条五代記』に異説として紹介されたもので有力視はされなかった。