A cardinal is a senior member of the clergy of the Catholic Church. Cardinals are created by the pope and typically hold the title for life. Collectively, they constitute the College of Cardinals. The most solemn responsibility of the cardinals is to elect a new pope in a conclave, almost always from among themselves, when the Holy See is vacant. During the period between a pope's death or resignation and the election of his successor, the day-to-day governance of the Holy See is in the hands of the College of Cardinals. The right to participate in a conclave is limited to cardinals who have not reached the age of 80 years by the day the vacancy occurs. In addition, cardinals collectively participate in papal consistories, in which matters of importance to the Church are considered and new cardinals may be created. Cardinals of working age are also appointed to roles overseeing dicasteries of the Roman Curia, the central administration of the Catholic Church.
The pope is the bishop of Rome and the visible head of the worldwide Catholic Church. He is also known as the supreme pontiff, Roman pontiff or sovereign pontiff. From the eighth century until 1870, the pope was the sovereign or head of state of the Papal States, and since 1929, of the much smaller Vatican City State. The current pope is Francis, who was elected on 13 March 2013.
Pope John XXIII was head of the Catholic Church and sovereign of the Vatican City State from 28 October 1958 until his death in June 1963.
Pope Paul VI was head of the Catholic Church and sovereign of the Vatican City State from 21 June 1963 to his death on 6 August 1978. Succeeding John XXIII, he continued the Second Vatican Council, which he closed in 1965, implementing its numerous reforms. He fostered improved ecumenical relations with Eastern Orthodox and Protestant churches, which resulted in many historic meetings and agreements. In January 1964, he flew to Jordan, the first time a reigning pontiff had left Italy in more than a century.
Traditionalist Catholicism is a movement that emphasizes beliefs, practices, customs, traditions, liturgical forms, devotions and presentations of teaching associated with the Catholic Church before the Second Vatican Council (1962–1965). Traditionalist Catholics particularly emphasize the Tridentine Mass, the Roman Rite liturgy largely replaced in general use by the post-Second Vatican Council Mass of Paul VI.
The College of Cardinals, more formally called the Sacred College of Cardinals, is the body of all cardinals of the Catholic Church. As of 10 October 2024, there are 235 cardinals, of whom 121 are eligible to vote in a conclave to elect a new pope. Cardinals are appointed by the pope for life but eligibility to vote ceases at the age of 80.
The East–West Schism, also known as the Great Schism or the Schism of 1054, is the break of communion between the Catholic Church and the Eastern Orthodox Church since 1054. A series of ecclesiastical differences and theological disputes between the Greek East and Latin West preceded the formal split that occurred in 1054. Prominent among these were the procession of the Holy Spirit (Filioque), whether leavened or unleavened bread should be used in the Eucharist, iconoclasm, the coronation of Charlemagne as Emperor of the Romans in 800, the Pope's claim to universal jurisdiction, and the place of the See of Constantinople in relation to the pentarchy.
The Melkite Greek Catholic Church, or Melkite Byzantine Catholic Church, is an Eastern Catholic church in full communion with the Holy See as part of the worldwide Catholic Church. Its chief pastor is Patriarch Youssef Absi, headquartered at the Cathedral of Our Lady of the Dormition in Damascus, Syria. The Melkites, who are Byzantine Rite Catholics, trace their history to the early Christians of Antioch, formerly part of Syria and now in Turkey, of the 1st century AD, where Christianity was introduced by Saint Peter.
Gregorio Pietro XV Agagianian was an Armenian cardinal of the Catholic Church. He was the head of the Armenian Catholic Church from 1937 to 1962 and supervised the Catholic Church's missionary work for more than a decade, until his retirement in 1970. He was considered papabile on two occasions, in 1958 and 1963.
According to Roman Catholicism, the history of the papacy, the office held by the pope as head of the Catholic Church, spans from the time of Peter to the present day.
The Catholic Church has engaged in the modern ecumenical movement especially since the Second Vatican Council (1962–1965) and the issuing of the decree Unitatis redintegratio and the declaration Dignitatis humanae. It was at the Council that the Pontifical Council for Promoting Christian Unity was created. Those outside of the Catholic Church were categorised as heretics or schismatics, but in many contexts today, to avoid offence, the euphemism "separated brethren" is used.
A papal name or pontificial name is the regnal name taken by a pope. Both the head of the Catholic Church, usually known as the pope, and the pope of the Coptic Orthodox Church of Alexandria choose papal names. As of 2013, Pope Francis is the Catholic pope, and Tawadros II or Theodoros II is the Coptic pope. This article discusses and lists the names of Catholic popes; another article has a list of Coptic Orthodox popes of Alexandria.
Kurt Koch is a Swiss prelate of the Catholic Church. He has been a cardinal since November 2010 and president of the Dicastery for Promoting Christian Unity since 1 July 2010. He was the bishop of Basel from 1996 until 2010.
The history of the Catholic Church is the formation, events, and historical development of the Catholic Church through time.
According to the Catholic Church, a Church Council is ecumenical ("world-wide") if it is "a solemn congregation of the Catholic bishops of the world at the invitation of the Pope to decide on matters of the Church with him". The wider term "ecumenical council" relates to Church councils recognised by both Eastern and Western Christianity.
Papal infallibility is a dogma of the Catholic Church which states that, in virtue of the promise of Jesus to Peter, the Pope when he speaks ex cathedra is preserved from the possibility of error on doctrine "initially given to the apostolic Church and handed down in Scripture and tradition". It does not mean that the pope cannot sin or otherwise err in some capacity, though he is prevented by the assistance of the Holy Spirit from issuing heretical teaching even in his non-infallible Magisterium, as a corollary of indefectibility. This doctrine, defined dogmatically at the First Vatican Council of 1869–1870 in the document Pastor aeternus, is claimed to have existed in medieval theology and to have been the majority opinion at the time of the Counter-Reformation.
Pope Benedict XVI, who led the Roman Catholic Church as Pope from 2005 to 2013, continued manoeuvring the Church through the dynamics of modernity, which the Church had begun engaging in with the Second Vatican Council. Because the question of religious pluralism is a key issue raised by modernity, ecumenism, the establishment of harmony and dialogue between the different Christian denominations, is a significant concern of a post Second Vatican Council Church. Pope Benedict XVI's approach has been characterised as leaning toward the conservative while still being expansive and engaged, involving the full breadth of Christendom, including the Orthodox Churches and Protestant churches, as well as freshly engaging with other Christian bodies considered by Roman Catholics to be more heterodox, such as the Church of Jesus Christ of Latter-day Saints.
Christianity in the 21st century is characterized by the pursuit of church unity and the continued resistance to persecution and secularization.
In the Catholic Church, the Synod of Bishops, considered as an advisory body for the pope, is one of the ways in which the bishops render cooperative assistance to him in exercising his office. It is described in the 1983 Code of Canon Law as "a group of bishops who have been chosen from different regions of the world and meet at fixed times to foster closer unity between the Roman Pontiff and bishops, to assist the Roman Pontiff with their counsel in the preservation and growth of faith and morals and in the observance and strengthening of ecclesiastical discipline, and to consider questions pertaining to the activity of the Church in the world."
The following outline is provided as an overview of and topical guide to the Catholic Church:
Catholic Churchportal 
