Following the enthronement of the Emperor Kotoku, Hashihito no Himemiko became the empress and Katsuragi no Miko (Naka no Oe no Oji, who later became the Emperor Tenchi) held the rank of crown prince and the new era name, Taika was established.
間人皇女はそれに伴い皇后となり、葛城皇子（中大兄皇子、後の天智天皇）を皇太子とし、大化の年号が採用された。