Charlemagne crowned Emperor by the Pope
On Christmas Day, Pope Leo III placed an imperial crown on Charlemagne, king of the Franks, in St Peter's Basilica. It revived the idea of a Roman emperor in the West more than three centuries after the last one. Whether Charlemagne planned the coronation or was surprised by it is a long-running dispute; his biographer Einhard claimed he disliked the title, though many historians doubt this.