Second Council of Lyons

Decrees of the Second Council of Lyons (A.D. 1274), convoked by Pope Gregory X for the sake of union with the Greeks, the crusade, and reform of the Church. Representatives of Emperor Michael VIII Palaeologus and the Greek Orthodox participated. In the fourth session, union between the Greek and Latin Churches was agreed upon and defined. The union, however, soon dissolved. Image above links to Tanner translation. ISBN recommendation: 0-87840-490-2

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First Council of Lyons

Decrees of the First Council of Lyons (A.D. 1245), convoked by Pope Innocent IV “that the Church, through the salutary counsel of the faithful and their fruitful help, may have the dignity of its proper position; that assistance may speedily be brought to the unhappy crisis in the Holy Land and the sufferings of the Eastern Empire; that a remedy may be found against the Tartars and other enemies of the faith and persecutors of the Christian people; further, for the issue between the Church and the Emperor”. During this Council, Innocent IV formally pronounced Frederick II as deprived of kingdom and empire. Image above links to Tanner translation. ISBN recommendation: 0-87840-490-2

Fourth Lateran Council

Decrees of the Fourth Lateran Council (A.D. 1215), convoked by Pope Innocent III “to eradicate vices and to plant virtues, to correct faults and to reform morals, to remove heresies and to strengthen faith, to settle discords and to establish peace, to get rid of oppression and to foster liberty, to induce princes and Christian people to come to the aid and succour of the Holy Land”. The Constitutions present a dogmatic formulation on Transubstantiation. Image above links to Tanner translation. ISBN recommendation: 0-87840-490-2

Third Lateran Council

Decrees of the Third Lateran Council (A.D. 1179), 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. ISBN recommendation: 0-87840-490-2

First Lateran Council

Decrees of 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. ISBN recommendation: 0-87840-490-2

Second Council of Nicaea

Decrees of the Seventh Ecumenical Council (A.D. 787) which was summoned to address the issue of iconoclasm. The council declared the production and exposure of art representing Christ and the saints to be an authentic ecclesiastical tradition in harmony with the spread of the gospel. Image above links to Tanner translation. ISBN recommendation: 0-87840-490-2.  For a more detailed defense of holy art, see St. John of Damascus: Apologies Against Those Who Attack the Divine Images in Appendix I.