Additionally, in the "Kojiki," there were only two Empresses, the Empress of Emperor Senka and Princess Tachibana no Nakatsu Hime, other than Prince Kasuga no Oiratsume, who were members of the Imperial family and do not appear in the paternal family lineage of their Emperors father's side.
なお、『古事記』において皇族出身の皇后の出自が、父である天皇の系譜で明らかでないのは、春日大娘皇女の他は、宣化天皇の皇后・橘仲皇女のみである。