Gustavus now plainly saw that no reconciliation was possible between the Catholic League and the Protestant Union, if the latter could be said to exist. He saw that German princes desired to settle with him on a money basis like a hireling, to give him no representation for Pomerania in the Diet, that their envy and jealousy at his success was greater than their love for Protestantism, and that they really preferred the House of Austria Catholic than him as a Protestant ruler, and that they were too jealous of each other to secure a Protestant Union if it were to be under the protection of Sweden. So in order to arrange with Richelieu for neutrality towards Bavaria he required that the League cease from all hostilities, that they call in all troops belonging to the League from the Emperor's army, from all conquered towns and from the Protestant territory. He also insisted on the reduction of their army, the exclusion of the Imperial troops from their territory, the restoration of all property taken from Protestants, the concession of religious liberty, and the expulsion of the Jesuits. In order to arrange for the treaty to be fully considered, Gustavus had agreed for a cessation of hostilities for two weeks, so that Richelieu might induce the Elector of Bavaria to accept the conditions. But while the French commissioner was assuring Gustavus of the favorable progress of these negotiations an intercepted letter between the Elector and Pappenheim, the commanding general of the Austrian army, showed that the Elector had no other object in causing the delay than the better preparation for continued war. Thereupon Gustavus notified Richelieu of his treachery, with word that he would now invade Bavaria. When the Pope, Urban VIII., heard of this he said: "The King of Sweden would commit a great imprudence if he advanced anywhere before crushing Maximilian." The Catholic League was never able to induce this Pope to make any public anathemas against Gustavus, for the Pope knew that the Hapsburgs were striving for personal and family aggrandizement under the pretence of fighting for the Church. He also knew that religious liberty prevailed wherever Gustavus conquered. Gustavus' rest was interrupted by hearing that Tilly was ravaging Franconia, and was marching on Nuremberg. He hastened to meet Tilly, who retreated towards the Danube.