There is also lore regarding the potential site of his death that hints at the possibility of his involvement in the eastern expedition because he performed a Shinto ritual prior to the eastern expedition in which an arrow was aimed toward the sun to solve political instability and there is also a theory passed down by Yaoi clan, who claim to be his descendants, that says he committed suicide.
また、東征前に政情不安から太陽に対して弓を引く神事を行ったという東征にも関与していた可能性をも匂わせる故地の候補地の伝承、自らを後裔と主張する矢追氏による自死したという説もある。