Who is a hero or heroine whose hubris led to his or her downfall?

A tragic hero is supposed to bring about his own downfall by a tragic flaw which could be because of his pride or hubris.

Hope that answers the question.

I believe that this most pertains to Odysseus. In Homer's epic 'The Odyssey' Odysseus's excessive hubris led to most of his failures and the eventual demise of his men.