Had the emperor at this moment acted wisely Oxenstiern's efforts would have been in vain. Wallenstein, farseeing and broad minded, saw the proper course to pursue, and strongly urged upon the emperor the advisability of declaring a universal amnesty, and of offering favourable conditions to the Protestant princes, who, dismayed at the loss of their great champion, would gladly accept any proposals which would ensure the religious liberty for which they had fought; but the emperor, blinded by this unexpected turn of fortune and infatuated by Spanish counsels, now looked to a complete triumph and to enforce his absolute will upon the whole of Germany. Instead, therefore, of listening to the wise counsels of Wallenstein he hastened to augment his forces. Spain sent him considerable supplies, negotiated for him with the ever vacillating Elector of Saxony, and levied troops for him in Italy. The Elector of Bavaria increased his army, and the Duke of Lorraine prepared again to take part in the struggle which now seemed to offer him an easy opportunity of increasing his dominions. For a time the Elector of Saxony, the Duke of Brunswick, and many others of the German princes wavered; but when they saw that Ferdinand, so far from being disposed to offer them favourable terms to detach them from the league, was preparing with greater vigour than ever to overwhelm them, they perceived that their interest was to remain faithful to their ally, and at a great meeting of princes and deputies held at Heilbronn the alliance was re-established on a firmer basis. Before, however, the solemn compact was ratified scarce one of the German princes and nobles but required of Oxenstiern the gratification of private greed and ambition, and each bargained for some possession either already wrested or to be afterwards taken from the enemy. To the Landgrave of Hesse the abbacies of Paderborn, Corvey, Munster, and Fulda were promised, to Duke Bernhard of Weimar the Franconian bishoprics, to the Duke of Wurtemburg the ecclesiastical domains and the Austrian counties lying within his territories, all to be held as fiefs of Sweden. Oxenstiern, an upright and conscientious man, was disgusted at the greed of these princes and nobles who professed to be warring solely in defence of their religious liberties, and he once exclaimed that he would have it entered in the Swedish archives as an everlasting memorial that a prince of the German empire made a request for such and such territory from a Swedish nobleman, and that the Swedish noble complied with the request by granting him German lands. However, the negotiations were at last completed, the Saxons marched towards Lusatia and Silesia to act in conjunction with Count Thurn against the Austrians in that quarter, a part of the Swedish army was led by the Duke of Weimar into Franconia, and the other by George, Duke of Brunswick, into Westphalia and Lower Saxony.