In what way was the weakening of the power of the German emperors manifested?

The main reason for the loss of the weight of imperial power in the 11th century in the Holy Roman Empire was the struggle for investiture between Henry the Fourth (1050-1106) and Pope George the Seventh (1025-1085). This enmity between the emperor and the pope was a struggle for the ability to appoint higher clergy in the regions, for influence and supremacy in the lands of the empire. In the course of this confrontation, Henry was excommunicated, which freed his subjects from the oath of allegiance. Henry had to wait three days for an audience with the Pope so that he would forgive him. This struggle for influence in the state shook the imperial power and did not allow the empire to take place as a centralized state.