It's a hereditary title, essentially part of the family name. It doesn't guarantee any additional privileges, and most nobles are probably not particularly weal

It's a hereditary title, essentially part of the family name. It doesn't guarantee any additional privileges, and most nobles are probably not particularly wealthy. I once met a prince who worked at a call center, and the only thing his title was good for was trolling customers who asked for his full name when they wanted to complain to his boss.