In 1629 the Shie Incident happened between the Imperial Palace and the Tokugawa shogunate, on November 22 of the same year, Emperor Mizunoo suddenly succeeded to the throne, and the first Princess was officially appointed as an Imperial Princess.
寛永6年（1627年）には朝幕間で紫衣事件が発生し、同年10月8日に後水尾天皇は突然譲位し、女一宮に内親王宣下が下される。