In the past, there were differing theories through which historians and other experts could identify the Kensaitsuka Kofun (The Kofun was an enpun tumulus and disappeared) in Kimura-Cho, Higashiomi City and Kuma no Mori Kofun (keyhole-shaped tumulus) inside Myoho-ji Temple as the burial mound of Prince Oshiha.
が、かつては同市木村町のケンサイ塚古墳（円墳・消滅）や妙法寺町の熊の森古墳（前方後円墳）を皇子墓に比定する異説もあった。