In the forementioned dissertation upon some coins of Charles the great, Ludovicus Pius, Lotharius, and their successors, stamped at Rome, there is a draught of a piece of Mosaic work which Pope Leo III. caused to be made in his Palace near the Church of John Lateran, in memory of his sending the standard or banner of the city of Rome curiously wrought, to Charles the great; and which still remained there at the publishing of the said book. In the Mosaic work there appeared Peter with three keys in his lap, reaching the Pallium to the Pope with his right hand, and the banner of the city to Charles the great with his left. By the Pope was this inscription, SCISSIMUS D.N. LEO PP; by the King this, D.N. CARVLO REGI; and under the feet of Peter this, BEATE PETRE, DONA VITAM LEONI PP, ET BICTORIAM CARVLO REGI DONA. This Monument gives the title of King to Charles, and therefore was erected before he was Emperor. It was erected when Peter was reaching the Pallium to the Pope, and the Pope was sending the banner of the city to Charles, that is, A.C. 796. The words above, Sanctissimus Dominus noster Leo Papa Domino nostro Carolo Regi, relate to the message; and the words below, Beate Petre, dona vitam Leoni Papae & victoriam Carolo regi dona, are a prayer that in this undertaking God would preserve the life of the Pope, and give victory to the King over the Romans. The three keys in the lap of Peter signify the keys of the three parts of his Patrimony, that of Rome with its Duchy, which the Pope claimed and was conquering, those of Ravenna with the Exarchate, and of the territories taken from the Lombards; both which he had newly conquered. These were the three dominions, whose keys were in the lap of St. Peter, and whose Crowns are now worn by the Pope, and by the conquest of which he became the little horn of the fourth Beast. By Peter’s giving the Pallium to the Pope with his right hand, and the banner of the city to the King with his left, and by naming the Pope before the King in the inscription, may be understood that the Pope was then reckoned superior in dignity to the Kings of the earth.