Robert of Clari: The Conquest of Constantinople

The Surrender of Constantinople During the IV Crusade, mosaic of 1213, Basilica of San Giovanni Evangelista, Ravenna.

A fascinating eyewitness account of the Fourth Crusade and the infamous siege and sack (A.D. 1204) of Constantinople. Image above links to Google Books entry. ISBN recommendation: 0-231-13669-2.  See also Appendix I, Memory and Reconciliation, for a reflection upon historic grave violations of charity by representatives of the Catholic community.

Third Lateran Council

The Entrance of Pope Alexander III and Emperor Frederick Barbarossa into Rome, fresco detail, Spinello Aretino, 1407, Palazzo Pubblico, Siena, Italy

The Third Lateran Council (A.D. 1179), was convoked by Pope Alexander III after the Battle of Legnano and the surrender of Emperor Frederick I. The primary object of the council was to end the nearly 20 year schism supported by the Emperor against Alexander. Image above links to Tanner translation of the Council decrees. ISBN recommendation: 0-87840-490-2

Second Lateran Council

Pope Innocent II, St. Lawrence, Pope Calixtus, Mary & Christ, mosaic, apse of Santa Maria in Trastevere, Rome.

The Second Lateran Council (A.D. 1139) was convoked by Pope Innocent II after the death of the antipope, Anacletus II (Peter Leoni). The Council sought to consolidate unity and reestablish ecclesial discipline. Image above links to Tanner translation of the Council decrees. ISBN recommendation: 0-87840-490-2

First Lateran Council

Pope Calixtus II, "Liber ad honorem Augusti" of Petrus of Ebulo, 1196.

The First Lateran Council (A.D. 1123), convoked by Pope Callistus II immediately after the Concordat of Worms, marks the beginning of the movement towards separation of Church and State. Image above links to Tanner translation of the Council decrees. ISBN recommendation: 0-87840-490-2

Fulcher of Chartres: A History of the Expedition to Jerusalem, 1095-1127

Peter the Hermit leading the First Crusade, Abreviamen de las estorias, 14th century.

The First Crusade was initiated, in the name of Christ by Pope Urban II, for the recovery of Romanian (Byzantine) territory (including the Holy Land) from the Turks and Arabs. Fulcher of Chartes was a participant in the Crusade and served as chaplain to Baldwin I. A History of the Expedition to Jerusalem (Gesta Francorum Iherusalem peregrinantium) provides an absorbing chronicle of the martial pilgrimage. Image links to Edward Peters edition. ISBN recommendation: 0393094235

St. Anselm of Canterbury: Proslogion

St. Anselm enthroned as archbishop, Composite manuscript. MS. Auct. D. 2. 6, pt.III ( = fols.156-200), St. Anselm's Prayers and Meditations in a copy made c.1130-40 for a house of white canons, Bodleian Library, Oxford.

Recognized as a Doctor of the Church and celebrated by many as the progenitor of Scholasticism, Anselm is a preeminent representative of philosophical theology. In the Proslogion (originally titled: Fides Quaerens Intellectum [Faith Seeking Understanding]), Anselm “aims at proving in a single argument the existence of God”. Written during 1077-78, it remains his most renowned work. Image links to Hopkins and Richardson translation. ISBN recommendation: 0889460000

St. Anselm of Canterbury: Monologion

St. Anselm hands over his writings to Mathilde. Anselm of Canterbury, Orationes, Diocese of Salzburg, around 1160. Admont, Stiftsbibliothek, Ms. 289, fol. 1v.

Anselm’s An Example of Meditation on the Grounds of Faith (Monologion) is a philosophic soliloquy upon the highest of all existing things (God) and prepares the foundation for the Proslogion. It was written during 1075-76 and relies heavily upon writings of St. Augustine and Boethius. Image links to Hopkins and Richardson translation. ISBN recommendation: 0889460000

Cardinal Humbert of Silva Candida (?): Summary of the Papal Embassy to Constantinople in 1054

Pope Leo IX giving his blessing, Église Saint-Pierre-et-Saint-Paul, Ottmarsheim, Haut-Rhin, Alsace, France.

A brief report from the papal embassy to Constantinople of the events which precipitated the Great Schism: the separation of great portions of the Eastern Church from union with the See of Rome. Image links to W. L. North translation.

Council of Constantinople, Hagia Sophia, 5 October 869 – 28 February 870

Pope Hadrian II (center) with Saints Cyril (left) and Methodius (right), detail from the fresco depicting the transfer (in 868) of the relics of St. Clement, 11th century; in the lower basilica of San Clemente, Rome.

Presided over by the legates of Pope Hadrian II, this council condemned Photius (Photios I of Constantinople), whom the Eastern Orthodox uphold as a great saint. Though self proclaimed the “eighth universal synod”, according to the eminent western canonist St. Ivo of Chartes: “The synod of Constantinople which was held against Photius must not be recognized. Pope John VIII wrote to the patriarch Photius (in 879): ‘We make void that synod which was held against Photius at Constantinople and we have completely blotted it out for various reasons as well as for the fact that Pope Hadrian did not sign its acts'”. I include it as an illustration of the tumultuous and vacillating relationship then existing between the Sees of Rome and Constantinople. Image above links to Tanner translation of the decrees. ISBN recommendation: 0-87840-490-2