Something I’ve learned from my pseudo-historical arranged gay marriage au post is that a lot of people really don’t get the “birth” part of birthright monarchy. The Hapsburgs didn’t do all that incest because they read too much supernatural fanfic, the had a literal religious belief that their bloodline was blessed by literal god. If you want your fictional monarchy to justify its right to rule a different way fine but I’m 99% sure the magic god blood enjoyers would not be super chill about anyone adopting street urchins into their social class. Like, It took until this century for the English Monarchy to let a peasant marry in