The king is able to give the titles prince/princess and duke/duchess to members of the SRF, at birth and at marriage. I don't see any reason why he wouldn't be able to announce that a child would be prince/ss Bernadotte instead of prince/ss of Sweden.That's actually an interesting idea Meraude. Is the King able to give titles apart from Duchies? I know that the Counts of Wisborg were given the title by the Grand Duke/Duchess of Luxembourg.