The Peace of Westphalia is the first, and, with the exception perhaps of the Treaties of Vienna in 1815, the most important of those attempts to reconstruct by diplomacy the European states-system which have played so large a part in modern history. It is important, however, not as marking the introduction of new principles, but as winding up the struggle which had convulsed Germany since the revolt of Luther, sealing its results, and closing definitively the period of the Reformation. Although the causes of disunion which the religious movement called into being had now been at work for more than a hundred years, their effects were not fully seen till it became necessary to establish a system which should represent the altered relations of the German states. It may thus be said of this famous peace, as of the other so-called 'fundamental law of the Empire,' the Golden Bull, that it did no more than legalize a condition of things already in existence, but which by being legalized acquired new importance. To all parties alike the result of the Thirty Years' War was thoroughly unsatisfactory: to the Protestants, who had lost Bohemia, and still were obliged to hold an inferior place in the electoral college and in the Diet: to the Catholics, who were forced to permit the exercise of heretical worship, and leave the church lands in the grasp of sacrilegious spoilers: to the princes, who could not throw off the burden of imperial supremacy: to the Emperor, who could turn that supremacy to no practical account. No other conclusion was possible to a contest in which every one had been vanquished and no one victorious; which had ceased because while the reasons for war continued the means of war had failed. Nevertheless, the substantial advantage remained with the German princes, for they gained the formal recognition of that territorial independence whose origin may be placed as far back as the days of Frederick the Second, and the maturity of which had been hastened by the events of the last preceding century. It was, indeed, not only recognized but justified as rightful and necessary. For while the political situation, to use a current phrase, had changed within the last two hundred years, the eyes with which men regarded it had changed still more. Never by their fiercest enemies in earlier times, not once by the Popes or Lombard republicans in the heat of their strife with the Franconian and Swabian Cæsars, had the Emperors been reproached as mere German kings, or their claim to be the lawful heirs of Rome denied. The Protestant jurists of the sixteenth or rather of the seventeenth century were the first persons who ventured to scoff at the pretended lordship of the world, and declare their Empire to be nothing more than a German monarchy, in dealing with which no superstitious reverence need prevent its subjects from making the best terms they could for themselves, and controlling a sovereign whose religious predilections