Titles like "First of his name" or "Fifth of his name" are a very original construct on Martin's side. However, I am curious, were these titles ever used in history for true?
Edit: I think people misunderstood my question. I know people have added numbers "the first, the second or the fifth..." after their ancestors. I am asking if there ever was used title "(number) of his name". I am asking, for example, was there ever in real life someone like "George, Second of his name"?