Portal:Investiture Controversy

Pope Gregory VII excommunicates Emperor Henry IV, as illustrated in Otto of Freising's Chronica de duabus civitatibus (12th c.)

People involved

Popes

• Author:Gregory VII
• Author:Paschal II
• Author:Calixtus II

Emperors

• Author:Henry IV
• Author:Henry V

Source documents

• In nomine Domini, decree of Pope Nicholas II on Papal elections (1059).
• Dictatus papae, compilation of statements regarding Papal authority, attributed to Pope Gregory VII (1075).
• Letter from Gregory VII to Emperor Henry IV, rebuking him for various offences against the Church (1075).
• Letter from Henry IV to Gregory VII, denouncing him and withdrawing Imperial support of the Papacy (1076).
• Letter from the bishops of Germany to Gregory VII, condemning him and declaring support for the Emperor (1076).
• First Deposition and Banning of Henry IV by Gregory VII (1076)
• Summons to the Council of Worms issued by Henry IV to Gregory VII (1076)
• Gregory VII's Justification of himself to the Germans (1076)
• Promise of the King to offer Obedience to the Pope by Henry IV at the Convention of Oppenheim (1076)
• Edict cancelling the Sentence against Gregory VII by Henry IV at the Convention of Oppenheim (1076)
• Letter to the German Princes concerning the Penance of Henry IV at Canossa (1077)
• Quoniam investituras, decree of Gregory VII forbidding lay investiture (1078).
• Second Deposition and Banning of Henry IV by Gregory VII (1080)
• Sequentes statuta sanctorum patrum, decree of Gregory VII forbidding lay investiture (1080).
• Decision of the Synod of Brixen (1080)
• Letter of Gregory VII to Bishop Hermann of Metz (1081)
• Paschal's Privilege of the first Convention (1111)
• Paschal's Privilege of the second Convention (1111)
• Concordat of Worms between Pope Calixtus II and Emperor Henry V

Works about the controversy

• "Conflict of Investitures," in Catholic Encyclopedia, (ed.) by Charles G. Herbermann and others, New York: The Encyclopaedia Press (1913)