First, I thought- adopted
Then, maybe something less heavy, like “capricious”, maybe?(I mean that’s pretty clear, though)
But then again, maybe something else like- he’s not to marry or something (at least before a certain event/point in time)
Or he’s not the eldest, ie the real successor of the throne or just a substitute for the king or something like that!
Or that he can only marry in the 4 royal families, or of a certain status
As much as I think about it, the more scenarios are popping up in my mind 🤯