Try not to get your history from movies. Jus prima nocte never existed in Britain. It has been referenced in regard to King Evenus III (John III) of Scotland, who never existed, in the legends of CulCollen (sp) of Ireland, and King Edward III of England in the movie 'Braveheart', which was fictional in this respect.
It wasn’t a movie I got it from, nor are your assertions PROOF it never happened. ANYTHING in history has a root of truth somewhere. It’s just not always possible to pick out, but to assert that there are no records, so it never happened, is ridiculous. Besides, just how often do you suppose someone’s gonna boast for the record that he had someone else’s bride for the night? Just like slave owners and their female slaves... it HAPPENED but no one talks about it...