In 1858, he took part in the Demo of eighty-eight retainers of Imperial Court with IWAKURA and so on, and went to the Imperial Court to object to an Imperial sanction to the Treaty of amity and commerce between the United States and Japan.
安政5年（1858年）には岩倉らとともに廷臣八十八卿列参事件として行動し、朝廷に列参して日米修好通商条約への勅許に反対した。