Hoping for either good in-book evidence or perhaps an interview with the author, but I note that in the Wheel of Time series, there's a bit of an 'oops' played in the first three books in the series, where Rand al'Thor is mistaken for a borderland lord because his name has an "al'" in it, which is a royal appellation in the Borderlands, q.v. al'Lan Mandragoran.
It occurs to me that at least three of the Two Rivers main characters (him, Nynaeve al'Maera and Egwene al'Vere) have the same prefix to their surname, and that
All three characters actually end up being either royalty or quasi-royalty (Nynaeve the dispossessed Queen of Malkier, Egwene the Amyrlin which is a peer or even superior of kings and queens. Rand, of course, the Dragon Reborn and King of Illian. I note that Perrin winds up as a liege lord of a Queen but not actually royal himself (his agreement w/ Elayne preventing him from taking the throne of Saldaea himself) and Mat's position as consort to the Empress is clearly one where he is High Blood, but not actually her peer.
So I'm curious if there's any evidence that there's actually a connection, or not.