John H. Haaren, Famous Men of the Middle Ages… (1904)
“ For more than forty years Charlemagne was king of the Franks; but a still greater dignity was to come to him. In the year 800 some of the people in Rome rebelled against the Pope, and Charlemagne went with an army to put down the rebellion. He entered the city with great pomp and soon conquered the rebels. On Christmas day he went to the church of St. Peter, and as he knelt before the altar the Pope placed a crown upon his head, saying:“Long live Charles Augustus, Emperor of the Romans.” ”
