Cristianismo e politica na Idade Media: as relacoes entre o papado e o imperio

The mainly purpose of this article is to discuss one of the most important questions refereed to the interaction between Christianism and Politics in the various periods of the Middle Ages: the relation between Empire and Ecclesia. The theme will be analyzed on basis of the examination of some political and imaginary aspects involved of this relation that, in first place, contrasts two universal projects that falls in opposition in the political and religious context of the Middle Ages. Among the questions examined, an important point will be constituted by the origins of the notion of Empire since the Roman Empire and, later, the Carolingian Empire, as also their subsequent projections, including in the period that exceeds the Middle Ages in direction to Modernity. The relationship between Empire and Papacy, as we shall see, was constituted by the alternation of moments of alliance and political opposition, but throughout the entire period it can be also thought in terms of a great confrontation between secular and religious powers that involves the notions of “ecclesia”, “empire” and “kingdom”