Genichiro FUKUCHI, one of the former Shogunate retainers, concluded in his book "Bakufu Suibo Ron" (The Theory of Shogunate's Decline and Fall) that the surrender of Edo Castle marked the collapse of the Edo Shogunate.
旧幕臣・福地源一郎は、著書『幕府衰亡論』の中で「江戸開城をもって江戸幕府は滅亡した」としている。