In order to create a new parliamentary regime, the Imperial Court ordered Yoshikatsu TOKUGAWA and Yoshinaga MATSUDAIRA, members of the Tokugawa clan, Hisamitsu SHIMAZU of the Satsuma Domain, Toyoshige YAMAUCHI of the Tosa Domain, Munenari DATE of the Uwajima Domain, Nagamichi ASANO of the Hiroshima (Aki) Domain, Naomasa NABESHIMA of the Hizen Domain and Shigemasa IKEDA of the Okayama Domain (Yoshinobu's own brother) to come to Kyoto.
朝廷は新たな公議政体を創設するため、徳川家一門の徳川慶勝と松平慶永、薩摩藩の島津久光、土佐藩の山内豊信、宇和島藩の伊達宗城、広島藩（安芸）の浅野長訓、肥前藩の鍋島直正、岡山藩の池田茂政（慶喜の実弟）ら諸藩に上洛を命じた。