Concept map on the Empire and the Church in the Middle Ages: a summary and study outline of the struggle for investitures between the Pope and the Emperor. The map explains the conflict over universal power, from the Ottonian Privilege to Pope Gregory VII’s claim to supremacy. It covers the conflict between Henry IV and the Pope, the rise of the Guelph and Ghibelline factions, and the end of the struggle with the Concordat of Worms in 1122. A useful history outline for reviewing the relationship between the Empire and the Church in the Late Middle Ages.