continue to render to the study of scientific jurisprudence, this result will appear far from insignificant. But another of still wider import followed. When by the Peace of Westphalia a crowd of petty principalities were recognized as practically independent states, the need of a code to regulate their intercourse became pressing. That code Grotius and his successors formed out of what was then the private law of Germany, which thus became the foundation whereon the system of international jurisprudence has been built up during the last two centuries. That system is, indeed, entirely a German creation, and could have arisen in no country where the law of Rome had not been the fountain of legal ideas and the groundwork of positive codes. In Germany, too, was it first carried out in practice, and that with a success which is the best, some might say the only, title of the later Empire to the grateful remembrance of mankind. Under its protecting shade small princedoms and free cities lived unmolested beside states like Saxony and Bavaria; each member of the Germanic body feeling that the rights of the weakest of his brethren were also his own. [Sidenote: Influence of the Empire upon the history of the Church.] [Sidenote: Nature of the question at issue between the Emperors and the Popes.] The most important chapter in the history of the Empire is that which describes its relation to the Church and the Papacy. Of the ecclesiastical power it was alternately the champion and the enemy. In the ninth and tenth centuries the Emperors extended the dominion of Peter's chair: in the tenth and eleventh they rescued it from an abyss of guilt and shame to be the instrument of their own downfall. The struggle which Gregory the Seventh began, although it was political rather than religious, awoke in the Teutonic nations a hostility to the pretensions of the Romish court. That struggle ended, with the death of the last Hohenstaufen, in the victory of the priesthood, a victory whose abuse by the insolent and greedy pontiffs of the fourteenth and fifteenth centuries made it more ruinous than a defeat. The anger which had long smouldered in the breasts of the northern nations of Europe burst out in the sixteenth with a violence which alarmed those whom it had hitherto defended, and made the Emperors once more the allies of the Popedom, and the partners of its declining fortunes. But the nature of that alliance and of the hostility which had preceded it must not be misunderstood. It is a natural, but not the less a serious error to suppose, as modern writers often seem to do, that the pretensions of the Empire and the Popedom were mutually exclusive; that each claimed all the rights, spiritual and secular, of a universal monarch. So far was this from being the case, that we find mediæval writers and statesmen, even Emperors and Popes themselves, expressly recognizing a divinely appointed duality of government--two