In the mean time, a sharp contest had taken place between the imperial cavalry and the left wing of the Swedes, which was posted in a thicket on the Rednitz, with varying success, but with equal intrepidity and loss on both sides. The Duke of Friedland and Prince Bernard of Weimar had each a horse shot under them; the king himself had the sole of his boot carried off by a cannon ball. The combat was maintained with undiminished obstinacy, till the approach of night separated the combatants. But the Swedes had advanced too far to retreat without hazard. While the king was seeking an officer to convey to the regiments the order to retreat, he met Colonel Hepburn, a brave Scotchman, whose native courage alone had drawn him from the camp to share in the dangers of the day. Offended with the king for having not long before preferred a younger officer for some post of danger, he had rashly vowed never again to draw his sword for the king. To him Gustavus now addressed himself, praising his courage, and requesting him to order the regiments to retreat. "Sire," replied the brave soldier, "it is the only service I cannot refuse to your Majesty; for it is a hazardous one," -- and immediately hastened to carry the command. One of the heights above the old fortress had, in the heat of the action, been carried by the Duke of Weimar. It commanded the hills and the whole camp. But the heavy rain which fell during the night, rendered it impossible to draw up the cannon; and this post, which had been gained with so much bloodshed, was also voluntarily abandoned. Diffident of fortune, which forsook him on this decisive day, the king did not venture the following morning to renew the attack with his exhausted troops; and vanquished for the first time, even because he was not victor, he led back his troops over the Rednitz. Two thousand dead which he left behind him on the field, testified to the extent of his loss; and the Duke of Friedland remained unconquered within his lines.
For fourteen days after this action, the two armies still continued in front of each other, each in the hope that the other would be the first to give way. Every day reduced their provisions, and as scarcity became greater, the excesses of the soldiers rendered furious, exercised the wildest outrages on the peasantry. The increasing distress broke up all discipline and order in the Swedish camp; and the German regiments, in particular, distinguished themselves for the ravages they practised indiscriminately on friend and foe. The weak hand of a single individual could not check excesses, encouraged by the silence, if not the actual example, of the inferior officers. These shameful breaches of discipline, on the maintenance of which he had hitherto justly prided himself, severely pained the king; and the vehemence with which he reproached the German officers for their negligence, bespoke the liveliness of his emotion. "It is you yourselves, Germans," said he, "that rob your native country, and ruin your own confederates in the faith. As God is my judge, I abhor you, I loathe you; my heart sinks within me whenever I look upon you. Ye break my orders; ye are the cause that the world curses me, that the tears of poverty follow me, that complaints ring in my ear -- `The king, our friend, does us more harm than even our worst enemies.' On your account I have stripped my own kingdom of its treasures, and spent upon you more than 40 tons of gold*; while from your German empire I have not received the least aid. I gave you a share of all that God had given to me; and had ye regarded my orders, I would have gladly shared with you all my future acquisitions. Your want of discipline convinces me of your evil intentions, whatever cause I might otherwise have to applaud your bravery."
-- * A ton of gold in Sweden amounts to 100,000 rix dollars. --
Nuremberg had exerted itself, almost beyond its power, to subsist for eleven weeks the vast crowd which was compressed within its boundaries; but its means were at length exhausted, and the king's more numerous party was obliged to determine on a retreat. By the casualties of war and sickness, Nuremberg had lost more than 10,000 of its inhabitants, and Gustavus Adolphus nearly 20,000 of his soldiers. The fields around the city were trampled down, the villages lay in ashes, the plundered peasantry lay faint and dying on the highways; foul odours infected the air, and bad food, the exhalations from so dense a population, and so many putrifying carcasses, together with the heat of the dog-days, produced a desolating pestilence which raged among men and beasts, and long after the retreat of both armies, continued to load the country with misery and distress. Affected by the general distress, and despairing of conquering the steady determination of the Duke of Friedland, the king broke up his camp on the 8th September, leaving in Nuremberg a sufficient garrison. He advanced in full order of battle before the enemy, who remained motionless, and did not attempt in the least to harass his retreat. His route lay by the Aisch and Windsheim towards Neustadt, where he halted five days to refresh his troops, and also to be near to Nuremberg, in case the enemy should make an attempt upon the town. But Wallenstein, as exhausted as himself, had only awaited the retreat of the Swedes to commence his own. Five days afterwards, he broke up his camp at Zirndorf, and set it on fire. A hundred columns of smoke, rising from all the burning villages in the neighbourhood, announced his retreat, and showed the city the fate it had escaped. His march, which was directed on Forchheim, was marked by the most frightful ravages; but he was too far advanced to be overtaken by the king. The latter now divided his army, which the exhausted country was unable to support, and leaving one division to protect Franconia, with the other he prosecuted in person his conquests in Bavaria.
In the mean time, the imperial Bavarian army had marched into the Bishopric of Bamberg, where the Duke of Friedland a second time mustered his troops. He found this force, which so lately had amounted to 60,000 men, diminished by the sword, desertion, and disease, to about 24,000, and of these a fourth were Bavarians. Thus had the encampments before Nuremberg weakened both parties more than two great battles would have done, apparently without advancing the termination of the war, or satisfying, by any decisive result, the expectations of Europe. The king's conquests in Bavaria, were, it is true, checked for a time by this diversion before Nuremberg, and Austria itself secured against the danger of immediate invasion; but by the retreat of the king from that city, he was again left at full liberty to make Bavaria the seat of war. Indifferent towards the fate of that country, and weary of the restraint which his union with the Elector imposed upon him, the Duke of Friedland eagerly seized the opportunity of separating from this burdensome associate, and prosecuting, with renewed earnestness, his favourite plans. Still adhering to his purpose of detaching Saxony from its Swedish alliance, he selected that country for his winter quarters, hoping by his destructive presence to force the Elector the more readily into his views.
No conjuncture could be more favourable for his designs. The Saxons had invaded Silesia, where, reinforced by troops from Brandenburgh and Sweden, they had gained several advantages over the Emperor's troops. Silesia would be saved by a diversion against the Elector in his own territories, and the attempt was the more easy, as Saxony, left undefended during the war in Silesia, lay open on every side to attack. The pretext of rescuing from the enemy an hereditary dominion of Austria, would silence the remonstrances of the Elector of Bavaria, and, under the mask of a patriotic zeal for the Emperor's interests, Maximilian might be sacrificed without much difficulty. By giving up the rich country of Bavaria to the Swedes, he hoped to be left unmolested by them in his enterprise against Saxony, while the increasing coldness between Gustavus and the Saxon Court, gave him little reason to apprehend any extraordinary zeal for the deliverance of John George. Thus a second time abandoned by his artful protector, the Elector separated from Wallenstein at Bamberg, to protect his defenceless territory with the small remains of his troops, while the imperial army, under Wallenstein, directed its march through Bayreuth and Coburg towards the Thuringian Forest.