After the statesmen of the Aizu clan had come to Kyoto, the Sonno Joi movement gained additional strength, assassinations and threats by masterless samurai extremists became commonplace; even in the Court, sympathetic court nobles to Sonno Joi had a great influence, they often gave Imperial order without asking the Emperor's permission and demanded that the Shogunate immediately renounce the treaties with foreign countries following the Joi group's proposal (expulsion of foreigners), and what's more, in August 1863 (according to the old lunar calendar) they planned the Emperor's visit to Yamato for carrying out the Emperor's direct commitment to Joi.
会津藩上洛後の京都では尊攘運動がますます激しく、尊攘激派浪士による暗殺・脅迫が横行、朝廷においても尊攘派公家によって朝議が左右されるようになり、天皇の意向はまったく無視されて勅旨が乱発され、幕府に破約攘夷の実行を要求し、さらに1863年(文久3年)8月には天皇による攘夷親征を実行するための大和行幸が企てられた。