Example image of eyePlorer eyePlorer map for 'Concordat of Worms': 1122 Henry V, Holy Roman Emperor Pope Callixtus II September 23 Worms, Germany Divine right of kings Feudalism Investiture Controversy Pope Honorius II Simony Burgundy (region) Italy Crosier First Council of the Lateran Pope Gregory VII Investiture Benefice Life tenure Precaria Holy Roman Empire Ottonian dynasty Pope Sylvester II Conrad II, Holy Roman Emperor Pope Benedict IX Gregorian Reform Pope Nicholas II Henry IV, Holy Roman Emperor Antipope Clement III Pope Urban II St. Peter's Basilica Castel Sant'Angelo Robert Guiscard Pope Victor III Protestant Reformation Pope Paschal II Antipope Gregory VIII Frederick II, Duke of Swabia Swabia Lothair III, Holy Roman Emperor House of Hohenstaufen Frederick I, Holy Roman Emperor Charter of Liberties Henry I of England William I of England Anselm of Canterbury Malcolm III of Scotland Bec Abbey Norman conquest of England Vassal Scutage