On the retreat of the Prussians, Mannheim was surrendered without a blow by the electoral minister, Oberndorf, to the French. Wurmser arrived too late to the relief of the city. Quosdanowich, his lieutenant-general, nevertheless, succeeded in saving Heidelberg by sheltering himself behind a great abatis at Handschuchsheion, whence he repulsed the enemy, who were afterward almost entirely cut to pieces by General Klenau, whom he sent in pursuit with the light cavalry. General Boros led another Austrian corps across Nassau to Ehrenbreitstein, at that time besieged by the French under their youthful general, Marceau, who instantly retired. Wurmser no sooner arrived in person than, attacking the French before Mannheim, he completely put them to the rout and took General Oudinot prisoner. Clairfait, at the same time, advanced unperceived upon Mayence, and unexpectedly attacking the besieging French force, carried off one hundred and thirty-eight pieces of heavy artillery. Pichegru, who had been called from Holland to take the command on the Upper Rhine, was driven back to the Vosges. Jourdan advanced to his aid from the Lower Rhine, but his vanguard under Marceau was defeated at Kreuznach and again at Meissenheim. Mannheim also capitulated to the Austrians. The winter was now far advanced; both sides were weary of the campaign, and an armistice was concluded. Austria, notwithstanding her late success, was, owing to the desertion of Prussia, in a critical position. The imperial troops also refused to act. The princes of Southern Germany longed for peace. Even Spain followed the example of Prussia and concluded a treaty with the French republic. The consequent dissolution of the coalition between the German powers had at least the effect of preventing the formation of a coalition of nations against them by the French. Had the alliance between the sovereigns continued, the French would, from political motives, have used their utmost endeavors to revolutionize Germany; this project was rendered needless by the treaty of Basel, which broke up the coalition and confirmed France in the undisturbed possession of her liberties; and thus it happened that Prussia unwittingly aided the monarchical cause by involuntarily preventing the promulgation of the revolutionary principles of France.