Catholic Ecumenical Councils
Catholic Ecumenical Councils include 21 councils over a period of 1700 years. While definitions changed throughout history, in today's Roman Catholic understanding Ecumenical Councils are assemblies o...
Catholic Ecumenical Councils - Wikipedia
First Council of Nicaea
The First Council of Nicaea (/naɪˈsiːə/; Greek: Νίκαια [ˈni:kaɪja]) was a council of Christian bishops convened in Nicaea in Bithynia by the Roman Emperor Constantine I in AD 325. This first ecum...
First Council of Nicaea - Wikipedia
First Council of Constantinople
The First Council of Constantinople (Greek: Κωνσταντινούπολις Konstantinoúpolis) was a council of Christian bishops convened in Constantinople (present-day Istanbul in Turkey) in AD 381 by the Rom...
First Council of Constantinople - Wikipedia
First Council of Ephesus
The Council of Ephesus was a council of Christian bishops convened in Ephesus (near present-day Selçuk in Turkey) in AD 431 by the Roman Emperor Theodosius II. This third ecumenical council, an effor...
First Council of Ephesus - Wikipedia
Council of Chalcedon
The Council of Chalcedon (/kælˈsiːdən/ or /ˈkælsɨdɒn/) was a church council held from October 8 to November 1, AD 451, at Chalcedon (a city of Bithynia in Asia Minor), on the Asian side of the Bosporu...
Second Council of Constantinople
The Second Council of Constantinople is the fifth of the first seven ecumenical councils recognized as such by both West and East. Eastern Orthodox, Catholics, and Old Catholics unanimously recognize ...
Third Council of Constantinople
The Third Council of Constantinople, counted as the Sixth Ecumenical Council by the Orthodox Church, the Catholic Church and other Christian groups, met in 680/681 and condemned monoenergism and monot...
Second Council of Nicaea
The Second Council of Nicaea is recognized as the seventh of the first seven ecumenical councils by both West and East. Orthodox, Catholics, and Old Catholics unanimously recognize it; Protestant opi...
Second Council of Nicaea - Wikipedia
Fourth Council of Constantinople (Catholic)
The Fourth Council of Constantinople (Roman Catholic) was the eighth Catholic Ecumenical Council held in Constantinople from October 5, 869, to February 28, 870. It included 102 bishops, three papal l...
First Council of the Lateran
The Council of 1123 is reckoned in the series of Ecumenical councils by the Catholic Church. It was convoked by Pope Calixtus II in December, 1122, immediately after the Concordat of Worms. The Counci...
First Council of the Lateran - Wikipedia
Second Council of the Lateran
The Second Council of the Lateran is believed to have been the Tenth Ecumenical Council by Roman Catholics. It was held by Pope Innocent II in April 1139, and was attended by close to a thousand cleri...
Second Council of the Lateran - Wikipedia
Third Council of the Lateran
The Third Council of the Lateran met in March 1179 as the eleventh ecumenical council. Pope Alexander III presided and 302 bishops attended.By agreement reached at the Peace of Venice in 1177 the bitt...
Fourth Council of the Lateran
The Fourth Council of the Lateran was convoked by Pope Innocent III with the papal bull of April 19, 1213, and the Council gathered at Rome's Lateran Palace beginning November 11, 1215. Due to the gre...
First Council of Lyon
The First Council of Lyon (Lyons I) was the thirteenth ecumenical council, as numbered by the Catholic Church, taking place in 1245.The First General Council of Lyon was presided over by Pope Innocent...
First Council of Lyon - Wikipedia
Second Council of Lyon
The Second Council of Lyon was the fourteenth ecumenical council of the Catholic Church, convoked on 31 March 1272 and convened in Lyon, France, in 1272–1274. Pope Gregory X presided over the council,...
Second Council of Lyon - Wikipedia
Council of Vienne
The Council of Vienne was the fifteenth Ecumenical Council of the Roman Catholic Church that met between 1311 and 1312 in Vienne. Its principal act was to withdraw papal support for the Knights Templ...
Councilarism
Conciliarism was a reform movement in the 14th-, 15th- and 16th-century Catholic Church which held that supreme authority in the Church resided with an Ecumenical council, apart from, or even against,...
Councilarism - Wikipedia
Council of Constance
The Council of Constance is the 15th century ecumenical council recognized by the Roman Catholic Church, held from 1414 to 1418. The council ended the Three-Popes Controversy, by deposing or accepting...
Council of Constance - Wikipedia
Council of Florence
The Seventeenth Ecumenical Council of the Roman Catholic Church was convoked as the Council of Basel (Basle in the once-preferred English spelling) by Pope Martin V shortly before his death in Februar...
Council of Florence - Wikipedia
Fifth Council of the Lateran
The Fifth Council of the Lateran (1512–1517) is the Eighteenth Ecumenical Council to be recognized by the Roman Catholic Church and the last one before the Protestant Reformation.
When elected pop...
Council of Trent
The Council of Trent (Latin: Concilium Tridentinum), held between 1545 and 1563 in Trento (Trent) and Bologna, northern Italy, was one of the Roman Catholic Church's most important ecumenical coun...
Council of Trent - Wikipedia
First Vatican Council
The First Vatican Council (Latin: Concilium Vaticanum Primum) was convoked by Pope Pius IX on 29 June 1868, after a period of planning and preparation that began on 6 December 1864. This twentieth...
First Vatican Council - Wikipedia
Second Vatican Council
The Second Vatican Council (Latin: Concilium Oecumenicum Vaticanum Secundum or informally known as Vatican II) addressed relations between the Roman Catholic Church and the modern world. It was the tw...
Second Vatican Council - Wikipedia
Post Vatican II history of the Catholic Church
Post Vatican II history of the Catholic Church includes the recent history of the Catholic Church since the Second Vatican Council. It focuses on the influences of the Council on the Catholic Church, ...
Post Vatican II history of the Catholic Church - Wikipedia
Primacy of the Roman Pontiff
The primacy of the Bishop of Rome is an ecclesiastical doctrine concerning the respect and authority that is due to the Bishop of Rome from other bishops and their sees. Together with the Filioque c...
Primacy of the Roman Pontiff - Wikipedia
Sacrosanctum Concilium
Sacrosanctum Concilium, the Constitution on the Sacred Liturgy, is one of the constitutions of the Second Vatican Council. It was approved by the assembled bishops by a vote of 2,147 to 4 and promulga...
Sacrosanctum Concilium - Wikipedia
Development of the Christian biblical canon
The Christian biblical canons are the books Christians regard as divinely inspired and constituting a Christian Bible. Books included in the Christian biblical canons of both the Old and New Testament...
Development of the Christian biblical canon - Wikipedia
Nestorianism
Nestorianism is a Christological doctrine that emphasizes the disunion between the human and divine natures of Jesus. It was advanced by Nestorius (386–450), Patriarch of Constantinople from 428–431,...
Nestorianism - Wikipedia
Pastor aeternus
Pastor aeternus is the Dogmatic Constitution on the Church of Christ, issued by the First Vatican Council, July 18, 1870. The document defines four doctrines of the Catholic faith: the apostolic prim...
Arius
Arius (Ancient Greek: Ἄρειος, AD 250 or 256–336) was an ascetic Christian presbyter of Libyan birth, possibly of Berber extraction, and priest in Alexandria, Egypt, of the church of the Baucalis....
Arius - Wikipedia