The punishment (death) for attempted rape in their kingdom is ridiculous, and the sheer lack of investigation is also insane. Since he was a VIP, they should've looked into it more instead of just one sidedly sentencing him. I mean, think about it. If he did plan to commit a crime and was foiled, why the heck would he be leisurely sleeping in the same room..?

I'd get it if it was some random civilian who was being accused, but if he is so vital to the future of the world, he shouldn't get such nonsensical treatment, even if it's a princess accusing him. After all, it's a world of magic. It's certainly possible he was mind controlled, or the princess was mind controlled, or that one of them is a fake, or a hundred other possibilities aside from "he is just that depraved and dumb."