 Talleyrand was an integral player in the German mediatization.While the Treaty of Campo Formio of 1797 had, on paper, stripped German princes of their lands beyond the left bank of the Rhine, it was not enforced until the Treaty of Lunéville in 1801.As the French annexed these lands, leaders believed that rulers of states such as Baden, Bavaria, Württemberg, Prussia, Hesse and Nassau, who lost territories on the Left Bank, should receive new territories on the Right Bank through the secularization of ecclesiastical principalities.