However, the Sanada clan was transferred from Ueda to Kaizu-jo Castle (located in Matsushiro) by the Tokugawa administration, and because the area was the place where the ancestors of the lord of the domain and of the retainers had had a lively showing, therefore the battle sites were protected and tales about the sites were handed down for generations until the end of the Edo period.
しかしながら、徳川政権により上田から海津城（松代）に移された真田氏は藩主は勿論、家臣団にとっても武田配下だった「御先祖様」活躍の地であるためもあって幕末まで戦跡は保護されたり語り継がれることとなった。