As for the Satsuma clan/Tosa clan, while they initially targeted a meeting by various daimyos headed by the Tokugawa clan, at a certain point they turned their back on Bakufu and joined hands with their former enemy, the Choshu clan.
薩摩藩・土佐藩などは、当初は公武合体・徳川家を議長とする諸侯会議を目標としていたが、ある段階から幕府を見切り、それまでの敵の長州藩と手を結んだ。