On the 12th of February 1420 proceedings were begun before him against William Taylor, priest, who had been for fourteen years excommunicated for heresy, and was now degraded and burnt for saying that prayers ought not to be addressed to saints, but only to God.
Leo then formally excommunicated Luther by bull of the 3rd of January 1521; and in a brief directed the emperor to take energetic measures against heresy.
The most distinguished among the latter was D6llinger, who resisted all the advances of Mgr Scherr, archbishop of Munich, was excommunicated on the 17th of April 1871, and died unreconciled, though without joining any separate group. After him must be mentioned Friedrich of Munich, several professors of Bonn, and Reinkens of Breslau, who was the first bishop of the " Old Catholics."
He was one of the able band of professors who in 1870 supported Dbllinger in his resistance to the Vatican decrees, and was excommunicated with Ignaz v.