Even after Iemochi passed away, Katsu continuously made efforts toward the continuance and rehabilitation of the Tokugawa family until his later years by struggling to save the life of Yoshinobu TOKUGAWA, whom with he did not get along well, to protect the Tokugawa family and make it last.
その後も勝は徳川家の保護と存続のため、気が合わなかった徳川慶喜の助命に奔走し、晩年に至るまで徳川家の存続と名誉回復に尽力し続けた。