In the extremity in which the Swedes were now placed by the desertion of their allies, they addressed themselves to France, who met them with the greatest encouragement. The interests of the two crowns were closely united, and France would have injured herself by allowing the Swedish power in Germany to decline. The helpless situation of the Swedes, was rather an additional motive with France to cement more closely their alliance, and to take a more active part in the German war. Since the alliance with Sweden, at Beerwald, in 1632, France had maintained the war against the Emperor, by the arms of Gustavus Adolphus, without any open or formal breach, by furnishing subsidies and increasing the number of his enemies.
But alarmed at the unexpected rapidity and success of the Swedish arms, France, in anxiety to restore the balance of power, which was disturbed by the preponderance of the Swedes, seemed, for a time, to have lost sight of her original designs. She endeavoured to protect the Roman Catholic princes of the empire against the Swedish conqueror, by the treaties of neutrality, and when this plan failed, she even meditated herself to declare war against him. But no sooner had the death of Gustavus Adolphus, and the desperate situation of the Swedish affairs, dispelled this apprehension, than she returned with fresh zeal to her first design, and readily afforded in this misfortune the aid which in the hour of success she had refused. Freed from the checks which the ambition and vigilance of Gustavus Adolphus placed upon her plans of aggrandizement, France availed herself of the favourable opportunity afforded by the defeat of Nordlingen, to obtain the entire direction of the war, and to prescribe laws to those who sued for her powerful protection.
The moment seemed to smile upon her boldest plans, and those which had formerly seemed chimerical, now appeared to be justified by circumstances.
She now turned her whole attention to the war in Germany; and, as soon as she had secured her own private ends by a treaty with the Germans, she suddenly entered the political arena as an active and a commanding power.
While the other belligerent states had been exhausting themselves in a tedious contest, France had been reserving her strength, and maintained the contest by money alone; but now, when the state of things called for more active measures, she seized the sword, and astonished Europe by the boldness and magnitude of her undertakings. At the same moment, she fitted out two fleets, and sent six different armies into the field, while she subsidized a foreign crown and several of the German princes.
Animated by this powerful co-operation, the Swedes and Germans awoke from the consternation, and hoped, sword in hand, to obtain a more honourable peace than that of Prague. Abandoned by their confederates, who had been reconciled to the Emperor, they formed a still closer alliance with France, which increased her support with their growing necessities, at the same time taking a more active, although secret share in the German war, until at last, she threw off the mask altogether, and in her own name made an unequivocal declaration of war against the Emperor.
To leave Sweden at full liberty to act against Austria, France commenced her operations by liberating it from all fear of a Polish war.
By means of the Count d'Avaux, its minister, an agreement was concluded between the two powers at Stummsdorf in Prussia, by which the truce was prolonged for twenty-six years, though not without a great sacrifice on the part of the Swedes, who ceded by a single stroke of the pen almost the whole of Polish Prussia, the dear-bought conquest of Gustavus Adolphus. The treaty of Beerwald was, with certain modifications, which circumstances rendered necessary, renewed at different times at Compiegne, and afterwards at Wismar and Hamburg. France had already come to a rupture with Spain, in May, 1635, and the vigorous attack which it made upon that power, deprived the Emperor of his most valuable auxiliaries from the Netherlands. By supporting the Landgrave William of Cassel, and Duke Bernard of Weimar, the Swedes were enabled to act with more vigour upon the Elbe and the Danube, and a diversion upon the Rhine compelled the Emperor to divide his force.
The war was now prosecuted with increasing activity. By the treaty of Prague, the Emperor had lessened the number of his adversaries within the Empire;though, at the same time, the zeal and activity of his foreign enemies had been augmented by it. In Germany, his influence was almost unlimited, for, with the exception of a few states, he had rendered himself absolute master of the German body and its resources, and was again enabled to act in the character of emperor and sovereign.
The first fruit of his power was the elevation of his son, Ferdinand III., to the dignity of King of the Romans, to which he was elected by a decided majority of votes, notwithstanding the opposition of Treves, and of the heirs of the Elector Palatine. But, on the other hand, he had exasperated the Swedes to desperation, had armed the power of France against him, and drawn its troops into the heart of the kingdom.
France and Sweden, with their German allies, formed, from this moment, one firm and compactly united power; the Emperor, with the German states which adhered to him, were equally firm and united. The Swedes, who no longer fought for Germany, but for their own lives, showed no more indulgence; relieved from the necessity of consulting their German allies, or accounting to them for the plans which they adopted, they acted with more precipitation, rapidity, and boldness.
