However, since he was against the marriage of Imperial Princess Kazunomiya Chikako to Iemochi TOKUGAWA, he was overthrown under pressure of bakufu (Japanese feudal government headed by a shogun).
が、和宮親子内親王の徳川家茂降嫁に関しては反対の立場を取ったため、幕府から圧力を受けて失脚している。