HOW CHARLEMAGNE, THE KING OF THE FRANKS, CAME TO BEAR THE TITLE OF EMPEROR AND TRIED TO REVIVE THE OLD IDEAL OF WORLD-EMPIRE
The battle of Poitiers had saved Europe from the Mohammedans. But the enemy within--the hopeless disorder which had followed the disappearance of the Roman police officer--that enemy remained. It is true that the new converts of the Christian faith in Northern Europe felt a deep respect for the mighty Bishop of Rome. But that poor bishop did not feel any too safe when he looked toward the distant mountains. Heaven knew what fresh hordes of barbarians were ready to cross the Alps and begin a new attack on Rome. It was necessary--very necessary--for the spiritual head of the world to find an ally with a strong sword and a powerful fist who was willing to defend His Holiness in case of danger.
And so the Popes, who were not only very holy but also very practical, cast about for a friend, and presently they made overtures to the most promising of the Germanic tribes who had occupied north-western Europe after the fall of Rome. They were called the Franks. One of their earliest kings, called Merovech, had helped the Romans in the battle of the Catalaunian fields in the year 451 when they defeated the Huns. His descendants, the Merovingians, had continued to take little bits of imperial territory until the year 486 when king Clovis (the old French word for "Louis") felt himself strong enough to beat the Romans in the open. But his descendants were weak men who left the affairs of state to their Prime minister, the "Major Domus" or Master of the Palace.
Pepin the Short, the son of the famous Charles Martel, who succeeded his father as Master of the Palace, hardly knew how to handle the situation. His royal master was a devout theologian, without any interest in politics. Pepin asked the Pope for advice. The Pope who was a practical person answered that the "power in the state belonged to him who was actually possessed of it." Pepin took the hint. He persuaded Childeric, the last of the Merovingians to become a monk and then made himself king with the approval of the other Germanic chieftains. But this did not satisfy the shrewd Pepin. He wanted to be something more than a barbarian chieftain. He staged an elaborate ceremony at which Boniface, the great missionary of the European northwest, anointed him and made him a "King by the grace of God." It was easy to slip those words, "Dei gratia," into the coronation service. It took almost fifteen hundred years to get them out again.