As emperor of Spain, Gaul, and Britain, Constantine proved his strength against his barbarian enemies. However, when the other Roman emperors began to .\r<br>\r<br>As emperor of Spain, Gaul, and Britain, Constantine proved his strength against his barbarian enemies. However, when the other Roman emperors began to .\r<br>\r<br>As emperor of Spain, Gaul, and Britain, Constantine proved his strength against his barbarian enemies. However, when the other Roman emperors began to .\r<br>\r<br>Rome: The Rise and Fall of an Empire - Episode 10: Constantine the Great (Documentary) The Roman Empire was the largest and most powerful in history, but .
