first of all the disclaimer: I asked this in a few places aleady (last time sent a few emails to my history teachers, still waiting for any answer tho), so it's only natural I would also try here. Ready? Yes, no? Anyhow, here goes.

So, I finished reading Prince by Machiavelli recently, but don't worry I don't want to drag you into politically-philosophical debates here. It's that Machiavelli was using a term "Messer" in his let's call it "history recalls" (like "Messer Annibale Bentivoglio, who was prince in Bologna" or "not one of his family survived but Messer Giovanni"). I did some research on my own, and I learned that "Messer" was a form of address, that was used when one wanted to express his or hers respect, without mentioning interlocutor's titles and offices (kind of like "Mr Smith", I think). So, the question is - what would be its female counterpart? Like, you know - "Lord/Lady", or "Sir/Madam".
Why do I care? Because I want to use it in my graphomaniac short stories, silly

I won't hide, I'd be most glad if such existed for real, it seems odd there may be none, and it feels oddly annoying I can't find any

But, if there wasn't such form of address, don't worry - after all even legendary Salomon can't pour from empty jug


That's all, hope your evening/morning/day/night/anytime is great
