Banner, at length, terminated his career at Halberstadt, in May 1641, a victim to vexation and disappointment. He sustained with great renown, though with varying success, the reputation of the Swedish arms in Germany, and by a train of victories showed himself worthy of his great master in the art of war. He was fertile in expedients, which he planned with secrecy, and executed with boldness; cautious in the midst of dangers, greater in adversity than in prosperity, and never more formidable than when upon the brink of destruction. But the virtues of the hero were united with all the railings and vices which a military life creates, or at least fosters. As imperious in private life as he was at the head of his army, rude as his profession, and proud as a conqueror; he oppressed the German princes no less by his haughtiness, than their country by his contributions. He consoled himself for the toils of war in voluptuousness and the pleasures of the table, in which he indulged to excess, and was thus brought to an early grave. But though as much addicted to pleasure as Alexander or Mahomet the Second, he hurried from the arms of luxury into the hardest fatigues, and placed himself in all his vigour at the head of his army, at the very moment his soldiers were murmuring at his luxurious excesses. Nearly 80,000 men fell in the numerous battles which he fought, and about 600 hostile standards and colours, which he sent to Stockholm, were the trophies of his victories. The want of this great general was soon severely felt by the Swedes, who feared, with justice, that the loss would not readily be replaced. The spirit of rebellion and insubordination, which had been overawed by the imperious demeanour of this dreaded commander, awoke upon his death. The officers, with an alarming unanimity, demanded payment of their arrears; and none of the four generals who shared the command, possessed influence enough to satisfy these demands, or to silence the malcontents. All discipline was at an end, increasing want, and the imperial citations were daily diminishing the number of the army; the troops of France and Weimar showed little zeal; those of Lunenburg forsook the Swedish colours; the Princes also of the House of Brunswick, after the death of Duke George, had formed a separate treaty with the Emperor; and at last even those of Hesse quitted them, to seek better quarters in Westphalia. The enemy profited by these calamitous divisions; and although defeated with loss in two pitched battles, succeeded in making considerable progress in Lower Saxony.