Pope Benedict V was the pope and ruler of the Papal States from 22 May to 23 June 964, in opposition to Leo VIII. He was overthrown by Emperor Otto I. His brief pontificate occurred at the end of a period known as the Saeculum obscurum.
Pope Benedict VI was the bishop of Rome and ruler of the Papal States from 19 January 973 to his death in 974. His brief pontificate occurred in the political context of the establishment of the Holy Roman Empire, during the transition between the reigns of Otto I and Otto II, incorporating the struggle for power of Roman aristocratic families such as the Crescentii.
Pope Benedict VIII was bishop of Rome and ruler of the Papal States from 18 May 1012 until his death. He was born Theophylact to the noble family of the counts of Tusculum. Unusually for a medieval pope, he had strong authority both in Rome and abroad.
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 Stephen III was the bishop of Rome and ruler of the Papal States from 7 August 768 to his death. Stephen was a Benedictine monk who worked in the Lateran Palace during the reign of Pope Zachary. In the midst of a tumultuous contest by rival factions to name a successor to Pope Paul I, Stephen was elected with the support of the Roman officials. He summoned the Lateran Council of 769, which sought to limit the influence of the nobles in papal elections. The Council also opposed iconoclasm.
Pope Stephen IV was the bishop of Rome and ruler of the Papal States from June 816 to his death. Stephen belonged to a noble Roman family. In October 816, he crowned Louis the Pious as emperor at Reims, and persuaded him to release some Roman political prisoners he held in custody. He returned to Rome, by way of Ravenna, sometime in November and died the following January.
Pope Stephen VII was the bishop of Rome and nominal ruler of the Papal States from February 929 to his death in 931. A candidate of the infamous Marozia, his pontificate occurred during the period known as the Saeculum obscurum.
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 Sergius III was the bishop of Rome and nominal ruler of the Papal States from 29 January 904 to his death. He was pope during a period of violence and disorder in central Italy, when warring aristocratic factions sought to use the material and military resources of the papacy. At the behest of Theophylact I of Tusculum, Sergius seized the papal throne from Antipope Christopher, who in turn had deposed Pope Leo V. Sergius' reign was subsequently marked by Theophylact's influence. As pope, Sergius continued many ecclesiastical controversies of his predecessors, including conflict over Pope Formosus' legacy, annulling all ordinations made by the late pope, and the filioque controversy with eastern patriarchs. His pontificate was similarly marked by temporal conflicts, with Sergius' refusal to crown Berengar I of Italy as Holy Roman Emperor, and his support of Byzantine Emperor Leo VI the Wise's fourth marriage. Sergius also saw the restoration of the Lateran Palace.
Pope Leo VIII was a Roman prelate who claimed the Holy See from 963 until 964 in opposition to John XII and Benedict V and again from 23 June 964 to his death. Today he is considered by the Catholic Church to have been an antipope during the first period and the legitimate Pope of Rome during the second. An appointee of Holy Roman Emperor Otto I, Leo VIII's pontificate occurred after the period known as the saeculum obscurum.
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 Lucius II, born Gherardo Caccianemici dal Orso, was head of the Catholic Church and ruler of the Papal States from 9 March 1144 to his death in 1145. His pontificate was notable for the unrest in Rome associated with the Commune of Rome and its attempts to wrest control of the city from the papacy. He supported Empress Matilda's claim to England in the Anarchy, and had a tense relationship with King Roger II of Sicily.
Pope Romanus was the bishop of Rome and ruler of the Papal States from August to November 897. His short reign occurred during a period of partisan strife in the Catholic Church, amid the violence and disorder in central Italy. His pontificate ended when he was deposed and confined to a monastery.
Pope John XI was the bishop of Rome and nominal ruler of the Papal States from March 931 to his death. The true ruler of Rome at the time was his mother, Marozia, followed by his brother Alberic II. His pontificate occurred during the period known as Saeculum obscurum.
Pope John XVIII was the bishop of Rome and nominal ruler of the Papal States from January 1004 to his abdication in July 1009. He wielded little temporal power, ruling during the struggle between John Crescentius and Emperor Henry II for the control of Rome.
Christopher claimed the papacy from October 903 to January 904. Although he was listed as a legitimate pope in most modern lists of popes until the first half of the 20th century, the apparently uncanonical method by which he obtained the papacy led to his being removed from the quasi-official roster of popes, the Annuario Pontificio. As such, he is now considered an antipope by the Catholic Church.
Antipope Constantine II was a Roman prelate who claimed the papacy from 28 June 767 to 6 August 768. He was overthrown through the intervention of the Lombards and tortured before he was condemned and expelled from the Church during the Lateran Council of 769.
Antipope Philip was an antipope who held office for just one day, on 31 July 768.
Alberic I was the Lombard Duke of Spoleto from between 896 and 900 until 920, 922, or thereabouts. He was also Margrave of Camerino, and the son-in-law of Theophylact I, Count of Tusculum, the most powerful man in Rome.
This article incorporates text from a publication now in the public domain : Herbermann, Charles, ed. (1913). "Pope Leo V". Catholic Encyclopedia . New York: Robert Appleton Company.
