Abstract
Roman emperors were at the pinnacle of society. They were supreme commanders of the armies, the highest priests and the ultimate source of law and justice. These three roles were made clear to the inhabitants of the empire from the reign of Augustus onwards through a variety of media. Public ceremonies showed emperors leaving the city for campaigns, and returning in triumph, at sacrifice, or sitting in judgement. Inscriptions likewise indicated the main roles of emperors through titulature or narrative. The military and the religious leadership of emperors were also made abundantly clear through public monuments and on centrally issued coinage. Yet, throughout Roman imperial history these last two types of source material are surprisingly silent on the emperors’ legal role.