Baron Praxis is a fictional character from the Dune universe, created by author Frank Herbert. He is a member of the House Harkonnen, known for his cruel and manipulative nature. Baron Praxis is often depicted as a powerful and wealthy nobleman who seeks to expand his influence and control over the desert planet of Arrakis, which is the only source of the valuable spice, melange. In the Dune series, Baron Praxis is characterized by his physical size and his use of advanced technology to maintain his health and mobility. His actions and schemes significantly impact the political landscape of the universe, particularly in relation to the rival House Atreides. His legacy is marked by treachery and ambition, making him a central antagonist in the story.