An imperial general, Holk, had previously been sent into Vogtland with 6,000 men, to waste this defenceless province with fire and sword, he was soon followed by Gallas, another of the Duke's generals, and an equally faithful instrument of his inhuman orders. Finally, Pappenheim, too, was recalled from Lower Saxony, to reinforce the diminished army of the duke, and to complete the miseries of the devoted country. Ruined churches, villages in ashes, harvests wilfully destroyed, families plundered, and murdered peasants, marked the progress of these barbarians, under whose scourge the whole of Thuringia, Vogtland, and Meissen, lay defenceless. Yet this was but the prelude to greater sufferings, with which Wallenstein himself, at the head of the main army, threatened Saxony. After having left behind him fearful monuments of his fury, in his march through Franconia and Thuringia, he arrived with his whole army in the Circle of Leipzig, and compelled the city, after a short resistance, to surrender. His design was to push on to Dresden, and by the conquest of the whole country, to prescribe laws to the Elector. He had already approached the Mulda, threatening to overpower the Saxon army which had advanced as far as Torgau to meet him, when the King of Sweden's arrival at Erfurt gave an unexpected check to his operations. Placed between the Saxon and Swedish armies, which were likely to be farther reinforced by the troops of George, Duke of Luneburg, from Lower Saxony, he hastily retired upon Meresberg, to form a junction there with Count Pappenheim, and to repel the further advance of the Swedes.
Gustavus Adolphus had witnessed, with great uneasiness, the arts employed by Spain and Austria to detach his allies from him. The more important his alliance with Saxony, the more anxiety the inconstant temper of John George caused him. Between himself and the Elector, a sincere friendship could never subsist. A prince, proud of his political importance, and accustomed to consider himself as the head of his party, could not see without annoyance the interference of a foreign power in the affairs of the Empire; and nothing, but the extreme danger of his dominions, could overcome the aversion with which he had long witnessed the progress of this unwelcome intruder. The increasing influence of the king in Germany, his authority with the Protestant states, the unambiguous proofs which he gave of his ambitious views, which were of a character calculated to excite the jealousies of all the states of the Empire, awakened in the Elector's breast a thousand anxieties, which the imperial emissaries did not fail skilfully to keep alive and cherish. Every arbitrary step on the part of the King, every demand, however reasonable, which he addressed to the princes of the Empire, was followed by bitter complaints from the Elector, which seemed to announce an approaching rupture. Even the generals of the two powers, whenever they were called upon to act in common, manifested the same jealousy as divided their leaders. John George's natural aversion to war, and a lingering attachment to Austria, favoured the efforts of Arnheim; who, maintaining a constant correspondence with Wallenstein, laboured incessantly to effect a private treaty between his master and the Emperor; and if his representations were long disregarded, still the event proved that they were not altogether without effect.
Gustavus Adolphus, naturally apprehensive of the consequences which the defection of so powerful an ally would produce on his future prospects in Germany, spared no pains to avert so pernicious an event; and his remonstrances had hitherto had some effect upon the Elector. But the formidable power with which the Emperor seconded his seductive proposals, and the miseries which, in the case of hesitation, he threatened to accumulate upon Saxony, might at length overcome the resolution of the Elector, should he be left exposed to the vengeance of his enemies; while an indifference to the fate of so powerful a confederate, would irreparably destroy the confidence of the other allies in their protector. This consideration induced the king a second time to yield to the pressing entreaties of the Elector, and to sacrifice his own brilliant prospects to the safety of this ally. He had already resolved upon a second attack on Ingoldstadt; and the weakness of the Elector of Bavaria gave him hopes of soon forcing this exhausted enemy to accede to a neutrality. An insurrection of the peasantry in Upper Austria, opened to him a passage into that country, and the capital might be in his possession, before Wallenstein could have time to advance to its defence. All these views he now gave up for the sake of an ally, who, neither by his services nor his fidelity, was worthy of the sacrifice; who, on the pressing occasions of common good, had steadily adhered to his own selfish projects; and who was important, not for the services he was expected to render, but merely for the injuries he had it in his power to inflict. Is it possible, then, to refrain from indignation, when we know that, in this expedition, undertaken for the benefit of such an ally, the great king was destined to terminate his career?
Rapidly assembling his troops in Franconia, he followed the route of Wallenstein through Thuringia. Duke Bernard of Weimar, who had been despatched to act against Pappenheim, joined the king at Armstadt, who now saw himself at the head of 20,000 veterans. At Erfurt he took leave of his queen, who was not to behold him, save in his coffin, at Weissenfels. Their anxious adieus seemed to forbode an eternal separation.
He reached Naumburg on the 1st November, 1632, before the corps, which the Duke of Friedland had despatched for that purpose, could make itself master of that place. The inhabitants of the surrounding country flocked in crowds to look upon the hero, the avenger, the great king, who, a year before, had first appeared in that quarter, like a guardian angel. Shouts of joy everywhere attended his progress; the people knelt before him, and struggled for the honour of touching the sheath of his sword, or the hem of his garment. The modest hero disliked this innocent tribute which a sincerely grateful and admiring multitude paid him. "Is it not," said he, "as if this people would make a God of me? Our affairs prosper, indeed; but I fear the vengeance of Heaven will punish me for this presumption, and soon enough reveal to this deluded multitude my human weakness and mortality!" How amiable does Gustavus appear before us at this moment, when about to leave us for ever! Even in the plenitude of success, he honours an avenging Nemesis, declines that homage which is due only to the Immortal, and strengthens his title to our tears, the nearer the moment approaches that is to call them forth!
In the mean time, the Duke of Friedland had determined to advance to meet the king, as far as Weissenfels, and even at the hazard of a battle, to secure his winter-quarters in Saxony. His inactivity before Nuremberg had occasioned a suspicion that he was unwilling to measure his powers with those of the Hero of the North, and his hard-earned reputation would be at stake, if, a second time, he should decline a battle. His present superiority in numbers, though much less than what it was at the beginning of the siege of Nuremberg, was still enough to give him hopes of victory, if he could compel the king to give battle before his junction with the Saxons. But his present reliance was not so much in his numerical superiority, as in the predictions of his astrologer Seni, who had read in the stars that the good fortune of the Swedish monarch would decline in the month of November. Besides, between Naumburg and Weissenfels there was also a range of narrow defiles, formed by a long mountainous ridge, and the river Saal, which ran at their foot, along which the Swedes could not advance without difficulty, and which might, with the assistance of a few troops, be rendered almost impassable. If attacked there, the king would have no choice but either to penetrate with great danger through the defiles, or commence a laborious retreat through Thuringia, and to expose the greater part of his army to a march through a desert country, deficient in every necessary for their support. But the rapidity with which Gustavus Adolphus had taken possession of Naumburg, disappointed this plan, and it was now Wallenstein himself who awaited the attack.