Add, moreover, that even if at the beginning those who founded kingdoms were usurpers for the most part, yet, by the passing of time, either they or their successors became lawful rulers of these kingdoms, since the people gradually gave their consent. In this way the kingdom of France is now lawful, in the opinion of all, though in the beginning the Franks unjustly occupied Gaul. And the same may be said of the kingdom of Spain, which began with the invasion of the Goths; of the kingdom of England, which began with the unjust occupation of the Anglo-Saxons; and of this very Roman Empire, which was founded by Julius Caesar, the oppressor of his country; which, nevertheless, afterward became lawful to such a degree that Our Lord said, “Render to Caesar the things that are Caesar’s, etc.”