As SerBear mentionned from Wikipedia, Nobility and Royalty are different. Should we make that difference here?
For now that's not clear as Category:Nobles contain things like :
- Category:Emperors
- Category:Empresses
- Category:Queens
- Category:Kings
- Category:Princes
- Category:Princesses
Also many characters like Aielef du Marquin have the Nobles category.
Should we create a Category:Royalty for royals? Emperors and Empresses should probably be only part of Category:Rulers I suppose.