The Liber Pontificalis is a book of biographies of popes from Saint Peter until the 15th century. The original publication of the Liber Pontificalis stopped with Pope Adrian II (867–872) or Pope Stephen V (885–891), but it was later supplemented in a different style until Pope Eugene IV (1431–1447) and then Pope Pius II (1458–1464). Although quoted virtually uncritically from the 8th to 18th centuries, the Liber Pontificalis has undergone intense modern scholarly scrutiny. The work of the French priest Louis Duchesne, and of others has highlighted some of the underlying redactional motivations of different sections, though such interests are so disparate and varied as to render improbable one popularizer's claim that it is an "unofficial instrument of pontifical propaganda."
Pope Benedict I was the bishop of Rome from 2 June 575 to his death.
Pope Benedict II was the bishop of Rome from 26 June 684 to his death. Pope Benedict II's feast day is 7 May.
Pope Gregory IV was the bishop of Rome and ruler of the Papal States from October 827 to his death. His pontificate was notable for the papacy’s attempts to intervene in the quarrels between Emperor Louis the Pious and his sons. It also saw the breakup of the Carolingian Empire in 843.
Pope Siricius was the bishop of Rome from December 384 to his death. In response to inquiries from Bishop Himerius of Tarragona, Siricius issued the Directa decretal, containing decrees of baptism, church discipline and other matters. His are the oldest completely preserved papal decretals. He is sometimes said to have been the first bishop of Rome to call himself pope.
Pope Sergius II was the bishop of Rome and ruler of the Papal States from January 844 to his death in 847. Sergius II's pontificate saw the Arab raid against Rome as well as the city's redevelopment.
Pope Valentine was the bishop of Rome and ruler of the Papal States for two months in 827. He was unusually close to his predecessor, Eugene II, rumoured to be his son or his lover, and became pope before being ordained as a priest. He was a nobleman and elected by nobility, which later became the custom.
Pope Victor II, born Gebhard of Dollnstein-Hirschberg, was the head of the Catholic Church and ruler of the Papal States from 13 April 1055 until his death in 1057. Victor II was one of a series of German-born popes who led the Gregorian Reform.
Pope Eugene II was the bishop of Rome and ruler of the Papal States from 6 June 824 to his death. A native of Rome, he was chosen by nobles to succeed Paschal I as pope despite the clergy and the people favoring Zinzinnus. The influence of the Carolingian Franks on the selection of popes was then firmly established. Pope Eugene convened a council at Rome in 826 to condemn simony and suspend untrained clergy. It was decreed that schools were to be established at cathedral churches and other places to give instruction in sacred and secular literature. His involvement in the Byzantine Iconoclasm controversy was largely inconsequential.
Year 855 (DCCCLV) was a common year starting on Tuesday of the Julian calendar.
Pope Leo IV was the bishop of Rome and ruler of the Papal States from 10 April 847 to his death. He is remembered for repairing Roman churches that had been damaged during the Arab raid against Rome, and for building the Leonine Wall around Vatican Hill to protect the city. Pope Leo organized a league of Italian cities who fought and won the sea Battle of Ostia against the Saracens.
Pope Paschal I was the bishop of Rome and ruler of the Papal States from 25 January 817 to his death in 824.
Pope Gelasius I was the bishop of Rome from 1 March 492 to his death on 19 November 496. Gelasius was a prolific author whose style placed him on the cusp between Late Antiquity and the Early Middle Ages. Some scholars have argued that his predecessor Felix III may have employed him to draft papal documents, although this is not certain.
Pope Hormisdas was the bishop of Rome from 20 July 514 to his death. His papacy was dominated by the Acacian schism, started in 484 by Acacius of Constantinople's efforts to placate the Monophysites. His efforts to resolve this schism were successful, and on 28 March 519, the reunion between Constantinople and Rome was ratified in the cathedral of Constantinople before a large crowd.
Pope Damasus II was the Bishop of Rome and ruler of the Papal States from 17 July 1048 to his death on 9 August that same year. He was the second of the German pontiffs nominated by Emperor Henry III. A native of Bavaria, he was the third German to become pope and had one of the shortest papal reigns.
Pope Constantine was the bishop of Rome from 25 March 708 to his death. One of the last popes of the Byzantine Papacy, the defining moment of his pontificate was his 710/711 visit to Constantinople, where he compromised with Justinian II on the Trullan canons of the Quinisext Council. The city's next papal visit occurred in 1967.
Pope Benedict IV was the bishop of Rome and ruler of the Papal States from 1 February 900 to his death. The tenth-century historian Flodoard, who nicknamed him "the Great", commended his noble birth and public generosity.
Anastasius Bibliothecarius was the librarian (bibliothecarius) and chief archivist of the Church of Rome and also briefly a claimant to the Papacy.
The selection of the Pope, the Bishop of Rome and Supreme Pontiff of the Catholic Church, prior to the promulgation of In Nomine Domini in AD 1059 varied throughout history. Popes were often putatively appointed by their predecessors or by political rulers. While some kind of election often characterized the procedure, an election that included meaningful participation of the laity was rare, especially as the Popes' claims to temporal power solidified into the Papal States. The practice of Papal appointment during this period would later result in the putative jus exclusivae, i.e., the claimed but invalid right to veto the selection that Catholic monarchs exercised into the twentieth century.
From 756 to 857, the papacy shifted from the influence of the Byzantine Empire to that of the kings of the Franks. Pepin the Short, Charlemagne, and Louis the Pious had considerable influence in the selection and administration of popes. The "Donation of Pepin" (756) ratified a new period of papal rule in central Italy, which became known as the Papal States.
