worldhistoryfacts: Coin issued by Charlemagne, early 800s CE. It depicts him as a Roman emperor, wre
worldhistoryfacts: Coin issued by Charlemagne, early 800s CE. It depicts him as a Roman emperor, wreath and all, and names him “Karolus Imp Aug” – Karl, Imperator Augustus. This was designed to capitalize on the fact that Pope Leo III, in an insult to the Byzantine emperor, had crowned Charlemagne not only Rex Francorum (King of the Franks) but Imperator Romanorum (Roman Emperor). {WHF} {HTE} -- source link
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