So, which of the Disney Princes is actually set to obtain a real seat of power eventually?

I ask this because the Disney guys just seem to be called 'Prince' without actually having any power. For example, the Prince in Beauty and the Beast does not seem to be part of a Royal family and as far as I am aware many aristocrats in France may be referred to as 'Prince' without actually having any Royal connection at all.
The only Princes that I can think of who will eventually come in to power are:

Aladdin, as he will become Sultan when Jasmine's father dies. 

Prince Philip will be King when Aurora becomes Queen ( although, in England, when a Princess becomes a ruling Queen her husband remains a Prince, like the present Royal family ). 

Flynn Rider will eventually become King when Rapunzel is Queen.

Are there any other Princes who are clearly going to be ruling over a Kingdom at some point? I really can't think of anymore.