Hey Nostr, please welcome Prince Filip of Serbia. 

I think  nostr:npub198q8ksyxpurd7lq6mf409nrtf32pka48yp2z6lhxghpqe9zjllfq5wtwcp is the first royal on Nostr, right? 

nostr:note12d503n99deq3v9nt5kvcdrqyphwed7nfw0n8p9ufcf2ezcejhnwq0gvcrj