The occupation of Ratisbon by the Bavarians, who, by the advice of Tilly, had surprised this town by stratagem, and placed in it a strong garrison, quickly changed the king's plan of operations. He had flattered himself with the hope of gaining this town, which favored the Protestant cause, and to find in it an ally as devoted to him as Nuremberg, Augsburg, and Frankfort. Its seizure by the Bavarians seemed to postpone for a long time the fulfilment of his favorite project of making himself master of the Danube, and cutting off his adversaries' supplies from Bohemia. He suddenly raised the siege of Ingoldstadt, before which he had wasted both his time and his troops, and penetrated into the interior of Bavaria, in order to draw the Elector into that quarter for the defence of his territories, and thus to strip the Danube of its defenders. The whole country, as far as Munich, now lay open to the conqueror. Mosburg, Landshut, and the whole territory of Freysingen, submitted; nothing could resist his arms. But if he met with no regular force to oppose his progress, he had to contend against a still more implacable enemy in the heart of every Bavarian--religious fanaticism. Soldiers who did not believe in the Pope were, in this country, a new and unheard-of phenomenon; the blind zeal of the priests represented them to the peasantry as monsters, the children of hell, and their leader as Antichrist. No wonder, then, if they thought themselves released from all the ties of nature and humanity toward this brood of Satan, and justified in committing the most savage atrocities upon them. Woe to the Swedish soldier who fell into their hands! All the torments which inventive malice could devise were exercised upon these unhappy victims; and the sight of their mangled bodies exasperated the army to a fearful retaliation. Gustavus Adolphus, alone, sullied the lustre of his heroic character by no act of revenge; and the aversion which the Bavarians felt toward his religion, far from making him depart from the obligations of humanity toward that unfortunate people, seemed to impose upon him the stricter duty to honor his religion by a more constant clemency.