On his coins, the name and title used by Charlemagne is "Karolus Imperator Augustus" and in his own documents he used "Imperator Augustus Romanum gubernans Imperium" ("August Emperor, governing the Roman Empire") and "serenissimus Augustus a Deo coronatus, magnus pacificus Imperator Romanorum gubernans Imperium" ("most serene Augustus crowned by God, great peaceful emperor governing the empire of the Romans").