Furthermore, since Prince Takechi dedicated a passionate Banka (Elegy) when Tochi no Himemiko, his older paternal half-sister and wife of Emperor Kobun suddenly died, some say that this couple was possibly the lovers or husband and wife.
また、異母姉で弘文天皇妃の十市皇女が急死した際に情熱的な挽歌を詠んだために、この二人が恋人同士か夫婦であったのではないかとの説もある。