Not sure if this is relevant but there is a YouTube true crime channel called mysterious wv. I do remember one episode that seems to look into a shootout between sheriff's/company representatives and miners in the state. I can't remember the name of the video or where exactly this took place but I thought it an excellent video.

I can't give an answer but I think this would be very early in recorded history. Written Greek & Roman history, I think, will be full of them. They must surely predate Greece & Rome.

Eccentric nobility has long been a thing. I don't know if the examples you give are typical but I'm certain they were not unknown. Added to this a number of them had few responsibilities until much later in life.

I can't speak on the subject with any great authority. However, your two sources as questionable. Im an admirer of Churchill, but he is questionable as a historian of the age. There are also criticisms of Keynes, that he was unduly influenced by, I think, one or two of his close sources on the continent. Again, I'm not saying who is right and wrong here, just that it is an ongoing debate.

Eh? Nowhere in my post did I say I know what they looked like. I said I suspect, emphasis on suspect, these faces are often made to look better than they really were. I'm assuming here that hair upkeep was worse back in the day, same with skin and teeth care. Add a bit of tough physical labour & childbirth and you could have a very different specimen than we see in the image. Sure, this lady may really have had the handsome looks of a daytime TV soap opera actress we see portrayed but I suspect(that word again) she did not.

Edit: plus, it's Scotland. We ain't as a rule very good looking.

I usually mistrust these. I suspect they are invariably portrayed better looking than they really were. This ladies skin looks quite nice. It reminds me of the facial reconstruction of Richard III. They gave his face skin even a supermodel would sell their grandmother for.