By the way, there was an article in "Omoinomama no ki" that the Princess had mental problem and once she wondered around and went out of the Palace, Gosakuramachiin (the Retired Emperor Gosakuramachi) was furious about this.
なお、心の病によって御所をさまよい出て、後桜町院の怒りに触れたという記事が『思ひのままの記』に見える。