There is another theory that Imoko is buried in the Karausuyama-kofun burial mound, which is located close to ONO-no-Imoko Park in Ono, Otsu City, Shiga Prefecture.
小野妹子公園（滋賀県大津市小野）そばの唐臼山古墳（からうすやまこふん）を小野妹子の墓とする説がある。