Sure, baron/baroness, duke,/duchess etc, I've no idea what the spousal title for a thane's wife is besides 'lady', same as Earl I don't think it has one and I'm not up on anything but modern British peerage anyway. I think Thane loosely parallels Earl too, which is why I threw Siward in there as option too. I wouldn't even discount one of the witches being in play or a nameless like 'Scottish doctor'.

Of interest to me at the moment though is the timeline on that Edit by mod, we've got the original post, then my first and only post till today, then two minor edits by mod more or less parallel to your own post, then the one that removes the MAcBeth reference, and a big time gap till Beet and Artsapat come in... it is actually quite probable that until now you and I were the only ones who saw the MAcBeth reference and I really would have chalked it up to bad memory and jumping the gun on paranoia had you not mentioned it. It certainly explains why I don't really remember having as much concern about proclaiming myself non-thane or getting accused of being MacBeth. I feel like there's something there, tip of tongue, and certainly why remove it?

Maybe just to leave that line open as a false flag? Or could MacBeth maybe be in game after all?