In contrast with Hideyoshi TOYOTOMI, whose reputation was debased after the establishment of the Tokugawa shogunate, Shingen's reputation among common people was maintained and approved even by the Tokugawa shogunate since Shingen was regarded as "bushin (the god of war) who gave Ieyasu hardships so that Ieyasu would grow up as a person," and Ieyasu learned from Shingen's methods.
徳川幕府が成立してから著しく評価を落とされた豊臣秀吉とは対照的に、信玄は『家康公を苦しめ、人間として成長させた武神』として、また信玄の手法を家康が参考にしたことから、『信玄の神格化＝家康の神格化』となるので幕府も信玄人気を容認していたとされる。