Catharism was a Christian dualist or Gnostic movement between the 12th and 14th centuries which thrived in Southern Europe, particularly in northern Italy and southern France. Followers were described as Cathars and referred to themselves as Good Christians; in modern times, they are mainly remembered for a prolonged period of religious persecution by the Catholic Church, which did not recognize their unorthodox Christianity.
Pope Alexander III, born Roland, was head of the Catholic Church and ruler of the Papal States from 7 September 1159 until his death in 1181.
Pope Clement III, was the head of the Catholic Church and ruler of the Papal States from 19 December 1187 to his death in 1191. He ended the conflict between the Papacy and the city of Rome, by allowing the election of magistrates, which reinstalled the Papacy back in the city after a six year exile. Clement, faced with a deplete college of cardinals, created thirty-one cardinals over three years, the most since Hadrian IV. He died 20 March 1191 and was quickly replaced by Celestine III.
Pope Celestine III, was the head of the Catholic Church and ruler of the Papal States from 30 March or 10 April 1191 to his death in 1198. He had a tense relationship with several monarchs, including Emperor Henry VI, King Tancred of Sicily, and King Alfonso IX of León.
Pope Gregory XI was head of the Catholic Church from 30 December 1370 to his death in March 1378. He was the seventh and last Avignon pope and the most recent French pope recognized by the modern Catholic Church. In 1377, Gregory XI returned the Papal court to Rome, ending nearly 70 years of papal residency in Avignon, France. His death shortly after was followed by the Western Schism involving two Avignon-based antipopes.
Pope Innocent IV, born Sinibaldo Fieschi, was head of the Catholic Church and ruler of the Papal States from 25 June 1243 to his death in 1254.
Pope Innocent III, born Lotario dei Conti di Segni, was the head of the Catholic Church and ruler of the Papal States from 8 January 1198 to his death in 16 July 1216.
An inquisitorial system is a legal system in which the court, or a part of the court, is actively involved in investigating the facts of the case. This is distinct from an adversarial system, in which the role of the court is primarily that of an impartial referee between the prosecution and the defense. Inquisitorial systems are used primarily in countries with civil legal systems, such as France and Italy, or legal systems based on Islamic law like Saudi Arabia, rather than in common law systems. It is the prevalent legal system in Continental Europe, Latin America, African countries not formerly under British rule, East Asia, Indochina, Thailand, the Philippines, and Indonesia. Most countries with an inquisitorial system also have some form of civil code as their main source of law.
Clericis laicos was a Papal bull issued on February 5, 1296 by Pope Boniface VIII in an attempt to prevent the secular states of Europe, in particular France and England, from appropriating church revenues without the express prior permission of the pope. The two expansionist monarchies had come to blows, and the precedents for taxation of the clergy for a "just war" if declared a crusade and authorized by the Papacy had been well established. The position of Boniface was that prior authorization had always been required, and the clergy had not been taxed for purely secular and dynastic warfare.
Unam sanctam is a papal bull that was issued by Pope Boniface VIII on 18 November 1302. It laid down dogmatic propositions on the unity of the Catholic Church, the necessity of belonging to it for eternal salvation, the position of the Pope as supreme head of the Church and the duty thence arising of submission to the Pope to belong to the Church and thus to attain salvation. The Pope further emphasized the higher position of the spiritual in comparison with the secular order. The historian Brian Tierney calls it "probably the most famous" document on church and state in medieval Europe. The original document is lost, but a version of the text can be found in the registers of Boniface VIII in the Vatican Archives. The bull was the definitive statement of the late medieval theory of hierocracy, which argued for the temporal as well as spiritual supremacy of the pope.
Decretals are letters of a pope that formulate decisions in ecclesiastical law of the Catholic Church.
The Decretum Gratiani, also known as the Concordia discordantium canonum or Concordantia discordantium canonum or simply as the Decretum, is a collection of canon law compiled and written in the 12th century as a legal textbook by the jurist known as Gratian. It forms the first part of the collection of six legal texts, which together became known as the Corpus Juris Canonici. It was used as the main source of law by canonists of the Roman Catholic Church until the Decretals, promulgated by Pope Gregory IX in 1234, obtained legal force, after which it was the cornerstone of the Corpus Juris Canonici, in force until 1917.
Henry of Segusio, usually called Hostiensis, was an Italian canonist of the thirteenth century, born at Susa (Segusio), in the ancient Diocese of Turin. He died at Lyon.
Petrus Boeri was a French Benedictine canonist and bishop.
The 1198 papal election was convoked after the death of Pope Celestine III; it ended with the election of Cardinal Lotario dei Conti di Segni, who took the name Innocent III. In this election for the first time the new pope was elected per scrutinium.
Bernard de Castanet was a French lawyer, judge, diplomat, bishop and cardinal of the Roman Catholic Church. Castanet was not a Dominican, though he had an excellent relationship with the order of the Preachers and occasionally exercised the office of inquisition as a bishop of Albi and a representative of the inquisitor of Carcassonne.
The Sun and Moon allegory is used to depict a medieval political theory of hierocracy which submits the secular power to the spiritual power, stating that the Pope is like the Sun i.e. the only source of his own light, while the Emperor is like the Moon, which merely reflects lights and has no value without the Sun. It was espoused by the Roman Catholic Church of Innocent III and instantiated to some extent in medieval political practice.
The Palace of the Popes in Anagni, sometimes called the Boniface VIII Palace (Palazzo Bonifacio VIII), is a building in the ancient hill town of Anagni in central Italy, in the hills east-southeast of Rome. It is closely associated in history with Pope Boniface VIII, was later bought by his nephew Peter II Caetani, and now houses a museum named after the Pope. It is at present part of a property owned by the Cistercian Sisters of Charity and used in part as their motherhouse.
In the Middle Ages, hierocracy or papalism was a current of Latin legal and political thought that argued that the pope held supreme authority over not just spiritual, but also temporal affairs. In its full, late medieval form, hierocratic theory posited that since Christ was lord of the universe and both king and priest, and the pope was his earthly vicar, the pope must also possess both spiritual and temporal authority over everybody in the world. Papalist writers at the turn of the 14th century such as Augustinus Triumphus and Giles of Rome depicted secular government as a product of human sinfulness that originated, by necessity, in tyrannical usurpation, and could be redeemed only by submission to the superior spiritual sovereignty of the pope. At the head of the Catholic Church, responsible to no other jurisdiction except God, the pope, they argued, was the monarch of a universal kingdom whose power extended to Christians and non-Christians alike.
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