Although Nobushige might have been grateful to the Toyotomi family for taking him as a commander when he was supposed to die in obscurity in Kudoyama, it is doubtful that he was so grateful to the Toyotomi family even though he wasn't a hereditary vassal of Toyotomi.
九度山に無名のまま朽ちる筈だった信繁を、将帥として召しだしてくれたことに感謝はあるだろうが、豊臣譜代の臣でもないのに、そこまで豊家に恩を感じていたか疑問である。