Agracier: It is rumoured that Diana Spencer had to undertake a gynecological examination before wedding Prince Charles and that this included a virginity check. One criterion was that the bride should be a virgin...
Again this may have been disguised as a medical check-up to see whether she would be able to bear children.
This does indeed sound like a very old tradition from medieval times or before. All in all I'd say the Lady was lucky that no witnesses to deflowering a prospective mother to the heir of the Crown were required to verify the first royal coupling. Stranger wedding customs than that existed in the West you know ... and Royalty often has a difficult time discarding old traditions ... 😃
The historical instance I was referring to was Eva Braun. She was sent to a nun's boarding school somewhere in Bavaria in the 1920s. Upon graduation and return to their parents care again, it seems that in the 1920-30s, it was not at all unusual for girls to get a final medical exam, which included a sort of certificate of virginity. This to prove that while the girls were in the boarding school's care, they were indeed watched over and guarded from any kind of sexual temptation. Call it a sort of warranty if you like, or proof of proper care.
I have read about this in some of the more exhaustive of Eva Braun's biographies, which, while interesting, is just a 'fait divers' in her sad life story and appalling choice of boyfriend.
And in our modern times, if a proof of virginity were still thought to be necessary in some immigrant families, then all they would need to do is go a fellow immigrant doctor who understood the custom. There would be no difficulty in that at all, certainly not in countries like France or Belgium. Whatever the law says, arranged marriages happen more than one would think in some ethnic groups. Compared to arranging a marriage between, let us surmise, unwilling partners, sending a daughter to a sympathetic and understanding doctor, would be a piece of cake.