One of them was a son of Oshisaka no Hikohito no Oe no Miko (Prince Oshisaka no Hikohito no Oe), Tamura no Miko (Emperor Jomei), the other was a son of Shotoku Taishi, Yamashiro no Oe no Okimi (Prince Yamashiro no Oe).
押坂彦人大兄皇子の子舒明天皇と、聖徳太子の子山背大兄王である。