He was succeeded by Clement VII. (1523-34). The new Pope was a relative of Leo X., and, like him, a patron of literature and art. He was a man of blameless life and liberal views, and endowed with great prudence and tact, but his excessive caution and want of firmness led to the ruin of his best-conceived plans and to the failure of his general policy. He despatched Cardinal Campeggio as his legate to the Diet of Nurnberg (1524). Once again the princes of Germany closed their ears to the appeal of the Pope, refused to take energetic measures to enforce the decree of Worms, and talked of establishing a commission to consider the grievances of their nation against Rome, and to inquire into the religious issues that had been raised. Campeggio, feeling that it was hopeless to expect assistance from the Diet, turned to the individual princes. He succeeded in bringing about an alliance at Ratisbon (1524) between the rulers of Austria, Bavaria, and several of the ecclesiastical princes of Southern Germany for the purpose of opposing the new teaching and safeguarding the interests of the Catholic Church. A similar alliance of the Catholic princes of Northern Germany was concluded at Dessau in 1526. At the same time the princes who were favourable to Lutheran views, notably Philip of Hesse, John, Elector of Saxony, the rulers of Brandenburg, Prussia, Mecklenburg and Mansfeld, together with the representatives of the cities of Brunswick and Mecklenburg, met and pledged themselves to make common cause, were any attempt made by the Emperor or the Catholic princes to suppress Luther's doctrine by force. In this way Germany was being divided gradually into two hostile camps.