But though Francis I. had been moved to take action against the sectaries, and though Calvin and other leaders were obliged to leave France, the reforming party, relying on the influence of patrons like Margaret of Navarre[1] and on the Humanist section at the university and at the newly established College de France, felt confident of ultimate success. They realised that the king was most anxious to arrive at an understanding with the Protestant princes of Germany against Charles V., and that therefore it was unlikely that he would indulge in a violent persecution of their co-religionists at home. They knew, too, that Francis I. had set his heart on securing complete control of the Church in his own dominions, as was evident by the hard bargain which he drove with Leo X. in the Corcordat of 1516,[2] and they were not without hope that Luther's teaching on the spiritual supremacy of the civil rulers might prove an irresistible bait to a man of such a temperament. Negotiations were opened with Francis I. by some of the German reformers, who offered to accept most of the Catholic doctrines together with episcopal government if only the king would support their cause (1534). As it was impossible to arrange for a conference, the Lutheran party submitted a summary of their views embodied in twelve articles to the judgment of the Sorbonne. In reply to this communication the doctors of the Sorbonne, instead of wasting their energies in the discussion of particular tenets, invited the Germans to state explicitly whether or not they accepted the authority of the Church and the writings of the Fathers. Such an attitude put an end to all hopes of common action between the French and German theologians, but at the same time Francis I. was not willing, for political reasons, to break with Protestantism. The publication, however, of a particularly offensive pamphlet against Catholicism, printed in Switzerland and scattered broadcast throughout France, served as a warning to the king that his own country was on the brink of being plunged into the civil strife which Protestantism had fomented in Germany, and that if he wanted to preserve national unity and peace the time for decisive action had arrived. Many of the leading reformers were arrested and some of them were put to death, while others were banished from France (1535).