Boniface succeeded to the Roman See, and in the following year, A. D. 606, only two years after Gregory’s death, applied to Phocas,—who had ascended the throne of Constantinople by the murder of the Emperor Mauritius,—for the same blasphemous title, with the privilege of continuing it to his successors. His request was granted, the Eastern Bishop was forbidden its use, and the Primate of Rome was again acknowledged as “Universal Bishop,” and the unrivalled “Head of all the churches.” This title has been worn by all the succeeding Popes; “but the highest authority,” says Dr. Croly, “among the civilians and annalists of Rome, spurn the idea that Phocas was the founder of the supremacy of Rome. They ascend to Justinian as the only legitimate source, and rightly date the title from the memorable year 533.”—_Apoc._ p. 117. In A. D. 730, Emperor Leo issued an edict for the destruction of all images used in religious worship. From that time the Pope scorned his authority, and acted in defiance of the emperor’s will, who found himself unable to compel the Pope to obey the edict. The Papacy thus defied all human authority; but did not as yet attempt the exercise of political power. In A. D. 756, Pepin, the usurper of the crown of France, compelled the King of Lombardy to cede the exarchate of Ravenna to the Pope, “to be forever held and possessed by St. Peter and his lawful successors in the See of Rome.” The Pope had now become a temporal prince, and one of the kings of the earth. In A. D. 774, Charlemagne, the successor of Pepin, confirmed the former gift, and in addition, subjugated the Lombards, and annexed a large portion of their kingdom and the Duchy of Rome to the Roman See. In A. D. 817, Louis the Pious, granted “St. Peter’s patrimony” to the Pope and his successors, “in their own right, principality, and dominion, unto the end of the world.” Hence, as a temporal prince, the Pope wears a triple crown. In A. D. 800, Charlemagne was solemnly crowned and proclaimed emperor by the Pope, having reduced under his sway nearly the whole of Europe. From this time the Popes claimed superiority to all kings and emperors, received homage from them, and exercised all the rights of sovereignty; but they were nominally dependent on the Emperors of the West till A. D. 1278, when the Emperor Rudolph released the people of the Papal States from all allegiance they might still owe to the imperial crown. This act was confirmed by the electors and princes of the empire. The Popes, in the greatness of their power, crowned and uncrowned kings at their pleasure, absolved subjects from all allegiance to their rulers, excommunicated whoever they would, and compelled secular princes to put to death heretics.