An epigraph in "Manyoshu" (Collection of Ten Thousand Leaves) states that right before his death, he left for Ise-jingu Shrine, where his older sister, Oku no Himemiko, served as Saio (Imperial Princess appointed to serve the deities of the shrine).
また、『万葉集』の題詞には死の直前に姉である大来皇女が斎王を務めている伊勢神宮へ向かったとある。