However, there is the Kamoinariyama Kofun (the keyhole-shaped mound; the length of which is forty–five meters; it is also called, Kasoryo [temporally burial of Emperor's tomb]) in Takashima City, and some historians and scholars believe in the theory that Kamoinariyama Kofun is the tomb of Hikoushio.
が、同市鴨の稲荷山古墳（前方後円墳・全長45m、仮葬陵ともいう）を墓とする別伝もある。