Blart, an ancient deity whose exact origins are uncertain, is believed to be one of the oldest Roman gods. Blart was the god of bravery, or guts, whichever you prefer. Commonly Blart was used in prayers too give others bravery or to hinder their opponents. Some believe Blart and Mars were grave enemys. But a more common and plausible theory is Blart was originally the God of War; but over time his name morphed into Mars, from many other cultural influences.