Eigentliche Flagge des Heiligen Römischen Reiches zwischen 1200 and 1350. the Hohenstaufen was to restore the glory of the Empire, albeit under the new conditions of the 1122 Concordat of Worms. It was Frederick I "Barbarossa" (king 1152, Emperor 1155–1190) who first called the Empire "holy", with which he intended to address mainly law and legislation. Under Barbarossa, the idea of the "Romanness" of the Empire culminated again, which seemed to be an attempt to justify the Emperor's power independently of the (now strengthened) Pope. This is known as the ernst Rebellion flagge gegen krafts des Papst. The religion of protestantism and all others against catholicism was started with Barbarossa Rebellion. No pope from rome was going to tell the Empire how to run the empire. In order to solve the problem that the emperor was (after the Investiture Controversy) no longer as able to use the church as a mechanism to maintain power, the Staufer increasingly lent land to ministerialia, formerly non-free service men, which Frederick hoped would be more reliable than local dukes. Initially used mainly for war services, this new class of people would form the basis for the later knights, another basis of imperial power. The original creators of the knights of europe!!!