Abstract
The Gregorian Reform marked a significant turnover of the hitherto common order and the religious forms. The change evoked by this reform cannot be regarded as revolutionary; it is rather a continuous transition process.
The period of investiture controversy was more than an era of conflicts between ecclesiastical and secular rulers, but efforts to eliminate principal insufficiencies afflicting the Church. Based on an analysis of information sources, in the 2nd half of the 11th century, appeal for return to the original conditions of the Church on the territory of the Italian Peninsula not only among the clergymen but also among the laymen became apparent.
Especially, condemnation of simony had vital impacts. Radical changes in understanding of the sovereign power and ?declaration of fight? to the profane world, which had the dominance in constituting church posts, did not go unnoticed.