There are several other possible explanations that Chujo Hime had some connection with Emperor Tenji (Emperor Tenchi, who had been called Prince Nakanooe), or Nakatsusumera-mikoto, or Prince Oshisaka-no-Onaka, or the Nakatomi clan, or Chugu (empress), however the details are still unknown.
他に考えられる例としては天智天皇、中皇命、忍坂大中姫、中臣氏、中宮等があげられるが、詳しいことはわかっていない。