"In a small book printed at Paris A.C. 1689, entitled, An historical dissertation upon some coins of Charles the great, Ludovicus Pius, Lotharius, and their successors stamped at Rome, it is recorded, that in the days of Pope Leo X, there was remaining in the Vatican, and till those days exposed to public view, an inscription in honour of Pipin the father of Charles the great, in these words... "That Pipin the pious was the first who opened a way to the grandeur of the Church of Rome, conferring upon her the Exarchate of Ravenna and many other oblations." ... [T]he Pope Stephen II] sent letters to Pipin, wherein he told him that if he came not speedily against the Lombards, pro data sibi potentia, alienandum fore à regno Dei & vita æterna, he should be excommunicated. Pipin therefore, fearing a revolt of his subjects, and being indebted to the Church of Rome, came speedily with an army into Italy, raised the siege, besieged the Lombards in Pavia, and forced them to surrender the Exarchate and region of Pentapolis to the Pope for a perpetual possession. Thus the Pope became Lord of Ravenna, and the Exarchate, some few cities excepted; and the keys were sent to Rome, and laid upon the confession of St. Peter, that is, upon his tomb at the high Altar, in signum veri perpetuique dominii, sed pietate Regis gratuita, as the inscription of a coin of Pipin hath it. This was in the year of Christ 755. And henceforward the Popes being temporal Princes, left off in their Epistles and Bulls to note the years of the Greek Emperors, as they had hitherto done."