The Prince Furuhito no Oe was of Soga origin and had been determined to become the next Emperor by Iruka but, after Isshi-no-hen, he became a priest and escaped to Yoshino.
皇子は蘇我氏の血を引いていて、入鹿によって次期天皇とされていたが、乙巳の変の後出家し吉野へ逃れていた。