She had absolute power as a grand empress after the Retired Emperor Saga died, she wielded her influence and established Daigaku besso Gakkan in (accommodation facility built near the University or college by the influential court nobles for their children in the Heian period) for the Tachibana clan, and was deeply involved in the Showa Incident to secure the position for Emperor Ninmyo.
嵯峨上皇の崩後も太皇太后として隠然たる勢力を有し、橘氏の子弟のために大学別曹学館院を設立するなど勢威を誇り、仁明天皇の地位を安定させるために承和の変にも深く関わったといわれる。