If you really think about it Mel did hell of movie but did lot with history liberity like for instance William Braverheart didn’t knock the boots with Princess Isabella Princess of Wales when war happen she was in still in France and she was 5 year old at that time
It so true Prince Edward future Edward 3 was gay that true story
They did take a lot of liberty with history in that film. Of course, if he were Muslim, 5 y/o would be no impediment - look at Muhammed himself.