My favorite characterization of Arthur I sometimes see nowadays in fanworks is when the fic or headcanon is based in any era pre...1600s
Arthur is a teen and the entire time you are reading, it just makes go "yep, no DNA test needed. That is the father of the future United States of America"
When not wanting to be told what to do by his elders, speaking/acting before thinking, and being rebellious against authority (older nations, king's), is included I know the characterization is going to be perfect.














