His intelligence and good personality were praised by marquis Moritatsu HOSOKAWA, his best friend, who described him saying, "He is brilliant and has the good traits he inherited from Yoshinobu."
頭脳明晰で性格円満、親友の細川護立侯爵からは、「才気縦横、故慶喜公の好いところを総て受け継いで居た」と評された。