The Emperor Constantine I, better known as Constantine the Great, is one of the most significant emperors in Roman history. His later Christian biographers lauded him as an icon, the man who set in motion Rome's dramatic transformation into a primarily Christian empire. And yet Constantine's own beliefs were deliberately ambiguous, as Professor David Potter explained. He learned from Diocletian, he witnessed the mistakes and the successes. He figured out how to heal divisions in the empire, but at the same time restore it to one man rule through blood and battle. Constantine's military and administrative successes are often-overlooked, but these in themselves were extraordinary. In this podcast David and I chatted through Constantine's remarkable life, his legacy and why you wouldn't rate your chances of survival if you were part of his family.