Talk:Equestria/@comment-201.188.101.151-20130203012200/@comment-4848126-20130219114947

No, that's not what a principate is. The significance of Luna and Celestia both being princesses is that there can't be two queens, so that they both bear the same title shows that they are equal rulers.

Considering the Crystal Empire doesn't seem to be part of Equestria, and the griffons probably wouldn't appreciate the term, I doubt it.