Prince Humperdinck is one of those very unlikable villains. He’s not as powerful or feared as a classic bad guy like Darth Vader. But he’s just a giant douchebag with a big ego and a compass for morality that’s completely broken.

He’s a prince for a fictional kingdom but since his father is old and senile, he’s practically the king. He wants to have a war with some other kingdom and stages an innocent princess to be slaughtered secretly so war can be triggered.

And he’s almost extremely successful with this plan.

I think they technically actually get married because I don’t remember the ceremony being interrupted.

But before he could commit evil in the “honeymoon suite” he was defeated by Westley. Consider that marriage annulled. Also a rare curve ball for him to just be captured, rather than slain.