I don’t see talking eye to eye to your second in command or to one of your trustful advisors as a 1:1. Of course that the first kind of discussion is quite old, today’s 1:1s are a different thing, at least when it comes to they’re seen in the corporate and tech world.
And back to your question, no, I don’t think that Zhukov or Napoleon had 1:1s with their second people in command, I don’t think they were laying down advancement opportunities nore were those people asked about how do they feel and what’s troubling them about the team (the army in this case).
You don't think Titus Labienus discussed anything one on one with Julius Caesar? That just sounds like insanity.
I want 1:1s, it's the best way that I can make my boss work for me. That stuff gets me raises and promotions.