The civil wars of the third century are finally ended by Emperor Diocletian, who shares rule of the empire with three co-emperors. In the eastern court and army of this powerful emperor, a young Constantine receives the training of a future leader.The civil wars of the third century are finally ended by Emperor Diocletian, who shares rule of the empire with three co-emperors. In the eastern court and army of this powerful emperor, a young Constantine receives the training of a future leader.