However, Nobushige himself had been underestimated until then because he had been overshadowed by his father Masayuki and older brother Nobuyuki as a second son of the Sanada clan, so it is said that Ieyasu TOKUGAWA was relieved knowing that it was the uncelebrated Nobushige, not Masayuki, who had entered Osaka-jo Castle.
しかし信繁自身については、それまで真田氏の次男坊として父・昌幸や兄・信之の名声に隠れていたために評価は低く、徳川家康も昌幸ではなく、その息子で無名の信繁が大坂に入ったと知り安堵の表情を浮かべたとされている。