Princess Sukatehime

Princess Sukatehime was born to Emperor Yōmei and a consort named Katsuragi Hiroko.^[1] Under the reign of her uncle, Emperor Bidatsu, the saiō had been her cousin, Princess Uji. However Princess Uji was dismissed after less than one year.^[3] Thus, when Princess Sukatehime's father, Emperor Yōmei succeeded to the throne, the position of saiō was vacant, and thus Sukatehime was appointed saiō.^[3]

When her father died, Sukatehime remained as saiō, and thus a new saiō was not chosen.^[4]

Sukatehime would continue to rule as saiō for the next two successive emperors, Sushun, and Suiko. Both her half-uncle and aunt respectively.^[5][6][7]

After 37 years, Sukatehime retired from her position.^[1][6] She retired in 622 and according to some versions of the Nihon-Shoki may have passed away soon after.^[6]