But he must have been alive for a while after the Empress Suiko was enthroned in 592, according to the birth year of the Emperor Jomei, calculated back based on "Ichidai Yoki (summary chronicle of each reign), "Honcho koin jounroku" (the Emperor's family tree, made in the Muromachi period) and the existence of his brother; it is assumed that he held the equal power as a candidate of the successor to the throne with Takeda no miko, the Soga clan origin, and the Prince Shotoku.
ただし、『一代要記』や『本朝皇胤紹運録』を基に逆算される舒明の生年（593年）とその弟の存在を考えると、592年の推古天皇即位後もしばらく生存していたはずで、非蘇我系の王位継承候補者として、蘇我系の竹田皇子や聖徳太子と比肩し得る地位を保っていたと思われる。