Deletion of Prince Yaroslav of Yugoslavia

Comment: reply|History lost royalty}} A "picture of his title" is not going to suffice: anyone can doctor up a document and take a picture of it. We need |proof from |reliable sources. Also, as the Karađorđević dynasty appears to be the only legitimate claimant to the erstwhile throne of Yugoslavia, if Prince Yaroslav is not a member of that family, it seems unlikely that he is legitimately a "Prince of Yugoslavia" at all
Stance: comment
Cited policy: Wikipedia:Verifiability (WP:PROVEIT||WP:RS)