In 751, he sent to Pope Zachary at Rome, Burchard, bishop of Wurtzhurg, and Fulrad, abbot of St.Denis, "to consult the Pontiff," says Eginhard, "on the subject of the kings then existing amongst the Franks, and who bore only the name of king without enjoying a tittle of royal authority." The Pope, whom St.Boniface, the great missionary of Germany, had prepared for the question, answered that "it was better to give the title of king to him who exercised the sovereign power;" and next year, in March, 752, in the presence and with the assent of the general assembly of "leudes" and bishops gathered together at Soissons, Pepin was proclaimed king of the Franks, and received from the hand of St.Boniface the sacred anointment.

They cut off the hair of the last Merovingian phantom, Childeric III., and put him away in the monastery of St.Sithiu, at St.Omer.

Two years later, July 28, 754, Pope Stephen II., having come to France to claim Pepin's support against the Lombards, after receiving from him assurance of it, "anointed him afresh with the holy oil in the church of St.Denis to do honor in his person to the dignity of royalty," and conferred the same honor on the king's two sons, Charles and Carloman.

The new Gallo-Frankish kingship and the Papacy, in the name of their common faith and common interests, thus contracted an intimate alliance.

The young Charles was hereafter to become Charlemagne.
The same year, Boniface, whom, six years before, Pope Zachary had made Archbishop of Mayence, gave up one day the episcopal dignity to his disciple Lullus, charging him to carry on the different works himself had commenced amongst the churches of Germany, and to uphold the faith of the people.