When I was working at a school in Vienna in a posh area, there was a boy in my class who was very shy, easily upset, who seemed to be having a hard time. He had an extremely old-fashioned historical name, the equivalent of calling your kid Ethelred in German, that kind of thing.
I asked the regular teacher if he was ok, if there was anything I should be aware of, and she just went “Oh don’t worry about him, he’s a Habsburg. Highly strung. You know how they are”
(His teeth and jaw were fine)