Author:Frederick I

Works

 * Peace of the Land established by Frederick Barbarossa (1152-1157).
 * The Establishment of the Duchy of Austria (1156).
 * Manifesto of the Emperor (1157).
 * Gelnhausen Charter (1180).

Letters to Frederick

 * Letter of Adrian IV to Barbarossa (1157).
 * Letter of Adrian IV to Barbarossa (1158).

Works about Frederick

 * Letter of Adrian IV to the German Bishops (1157).


 * "Frederick Barbarossa" in Famous Men of the Middle Ages by John H. Haaren (1904).
 * "Frederick Barbarossa" in Famous Men of the Middle Ages by John H. Haaren (1904).
 * "Frederick Barbarossa" in Famous Men of the Middle Ages by John H. Haaren (1904).
 * "Frederick Barbarossa" in Famous Men of the Middle Ages by John H. Haaren (1904).
 * "Frederick Barbarossa" in Famous Men of the Middle Ages by John H. Haaren (1904).