Prince Vladimir, first cousin of Crown Prince Alexander, has formed a monarchist political movement in Serbia:
https://eurohistoryjournal.blogspot.com/2019/11/prince-vladimir-son-of-prince-andrej-of.html
I don´t know. I thought that princesses from Serbia should have a litlle bit more of serious understanding of tradition.Did J.F.K. Have A Lovechild With A Royal Balkan Princess? The Answer Depends On Who You Ask!
Recently, Christina Oxenberg and her mother Princess Elizabeth of Yugoslavia have been trading barbs in the Balkan press regarding a sensitive issue: Christina's paternity. Oxenberg wrote last year that her mother had told her that U.S. President John F. Kennedy was her real biological father. Now, Princess Elizabeth has taken to the media to deny she ever said such a thing. Christina has responded to her mother's claims.
More here on this right royal conundrum:
https://eurohistoryjournal.blogspot.com/2020/01/did-jfk-have-lovechild-with-royal.html
I thought it was interesting that he talked about William and Harry. Does he personally know William and Harry?
While the interviewer seemed to suggest they were 'friends', he himself used the word 'acquaintances' (at least in the translated version), so, given that his father is the queen's godson, I assume they have met but aren't close in any way.