Jan Hus, sometimes anglicized as John Hus or John Huss, and referred to in historical texts as Iohannes Hus or Johannes Huss, was a Czech theologian and philosopher who became a Church reformer and the inspiration of Hussitism, a key predecessor to Protestantism, and a seminal figure in the Bohemian Reformation. Hus is considered to be the first Church reformer, even though some designate the theorist John Wycliffe. His teachings had a strong influence, most immediately in the approval of a reformed Bohemian religious denomination and, over a century later, on Martin Luther.
John Wycliffe was an English scholastic philosopher, theologian, biblical translator, reformer, Catholic priest, and a seminary professor at the University of Oxford. He became an influential dissident within the Catholic priesthood during the 14th century and is considered an important predecessor to Protestantism. Wycliffe questioned the privileged status of the clergy, who had bolstered their powerful role in England, and advocated radical poverty of the clergy.
The Albigensian Crusade or the Cathar Crusade was a military and ideological campaign initiated by Pope Innocent III to eliminate Catharism in Languedoc, what is now southern France. The Crusade was prosecuted primarily by the French crown and promptly took on a political aspect. It resulted in the significant reduction of practicing Cathars and a realignment of the County of Toulouse with the French crown. The distinct regional culture of Languedoc was also diminished.
Donatism was a Christian sect leading to a schism in the Church, in the region of the Church of Carthage, from the fourth to the sixth centuries. Donatists argued that Christian clergy must be faultless for their ministry to be effective and their prayers and sacraments to be valid. Donatism had its roots in the long-established Christian community of the Roman province Africa Proconsularis and Mauretania Tingitana, in the persecutions of Christians under Diocletian. Named after the Berber Christian bishop Donatus Magnus, Donatism flourished during the fourth and fifth centuries. Donatism mainly spread among the indigenous Berber population, and Donatists were able to blend Christianity with many of the Berber local customs.
The strigolniki were followers of a Russian religious sect which appeared in the mid-14th century, known as strigolnichestvo. They first appeared in Pskov before spreading to Novgorod and Tver. By the early 15th century, they had disappeared. Along with the Judaizers, they were one of the major sects in medieval Russia.
Gottschalk of Orbais was a Saxon theologian, monk and poet. Gottschalk was an early advocate for the doctrine of two-fold predestination, an issue that ripped through both Italy and Francia from 848 into the 850s and 860s. Led by his own interpretation of Augustine's teachings on the matter, he claimed the sinfulness of human nature and the need to turn to God with a humility for salvation. He saw himself as a divine vessel calling all of Christianity to repent for decades of Civil War. His attempts of this new Christianisation of Francia ultimately failed, his doctrine was condemned as heresy at the 848 council of Mainz and 849 council of Quierzy. Following his conviction as a heretic Gottschalk remained stubborn to his ideology disobeying the ecclesiastical hierarchy, making him an "actual heretic in the flesh", for this disobedience Gottschalk was placed in monastic confinement; however the shockwaves his ideology sent around Western Christendom refused to stop reverberating, Gottschalk managed to win over more followers and the threat remained up until his death in 868.
Jerome of Prague was a Czech scholastic philosopher, theologian, reformer, and professor. Jerome was one of the chief followers of Jan Hus and was burned for heresy at the Council of Constance.
Henry of Lausanne was a French heresiarch of the first half of the 12th century. His preaching began around 1116 and he died imprisoned around 1148. His followers are known as Henricians.
John Jewel of Devon, England was Bishop of Salisbury from 1559 to 1571.
The Amalricians were a pantheist, movement named after Amalric of Bena. The beliefs are thought to have influenced the Brethren of the Free Spirit.
Nil Sorsky became a leader of a tendency in the late medieval Russian Orthodox Church known as the non-possessors (nestyazhateli) which opposed ecclesiastic landownership. The Russian Orthodox Church venerates Nil Sorsky as a saint, marking his feast day on the anniversary of his repose on 7 May.
Richard Hunne was an English merchant tailor in the City of London during the early years of the reign of Henry VIII (1509-1547). After a dispute with his priest over his infant son's funeral, Hunne sought to use the English common law courts to challenge the church's authority. In response, church officials arrested him for trial in an ecclesiastical court on the capital charge of heresy.
The Sacramentarians were Christians during the Protestant Reformation who denied not only the Roman Catholic transubstantiation but also the Lutheran sacramental union.
Nicholas Shaxton was Bishop of Salisbury. For a time, he had been a Reformer, but recanted this position, returning to the Roman faith. Under Henry VIII, he attempted to persuade other Protestant leaders to also recant. Under Mary I, he took part in several heresy trials of those who became Protestant martyrs.
Thomas Harding was a sixteenth-century English religious dissident who, while waiting to be burnt at the stake as a Lollard in 1532, was struck on the head by a spectator with one of the pieces of firewood, which killed him instantly.
Heresy in Christianity denotes the formal denial or doubt of a core doctrine of the Christian faith as defined by one or more of the Christian churches.
The English Reformation took place in 16th-century England when the Church of England broke away from the authority of the pope and the Catholic Church. These events were part of the wider European Reformation, a religious and political movement that affected the practice of Christianity in Western and Central Europe.
In the canon law of the Catholic Church, excommunication is a form of censure. In the formal sense of the term, excommunication includes being barred not only from the sacraments but also from the fellowship of Christian baptism. The principal and severest censure, excommunication presupposes guilt; and being the most serious penalty that the Catholic Church can inflict, it supposes a grave offense. The excommunicated person is considered by Catholic ecclesiastical authority as an exile from the Church, for a time at least.
The following outline is provided as an overview of and topical guide to the Catholic Ecumenical Councils.
Heresy is defined by the Catholic Church as "the obstinate denial or obstinate doubt after the reception of baptism of some truth which is to be believed by divine and Catholic faith". The term heresy connotes both the belief in itself, and the attitude towards said belief.
