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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 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 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 V was the bishop of Rome and nominal ruler of the Papal States from July 903 to his death in February 904. He was pope immediately before the period known as the Saeculum obscurum, when popes wielded little temporal authority.
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 X was the bishop of Rome and nominal ruler of the Papal States from March 914 to his death. A candidate of the counts of Tusculum, he attempted to unify Italy under the leadership of Berengar of Friuli, and was instrumental in the defeat of the Saracens at the Battle of Garigliano. He eventually fell out with Marozia, who had him deposed, imprisoned, and finally murdered. John’s pontificate occurred during the period known as the Saeculum obscurum.
Saeculum obscurum, also known as the Pornocracy or the Rule of the Harlots, was a period in the history of the Papacy during the first two-thirds of the 10th century, following the chaos after the death of Pope Formosus in 896 which saw seven or eight papal elections in as many years. It began with the installation of Pope Sergius III in 904 and lasted for sixty years until the death of Pope John XII in 964. During this period, the popes were influenced strongly by a powerful and allegedly corrupt aristocratic family, the Theophylacti, and their relatives and allies. The era is seen as one of the lowest points of the history of the papal office.
Theophylact I was a medieval count of Tusculum who was the effective ruler of Rome from around 905 through to his death in 924. His descendants controlled the papacy for the next 100 years.
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.
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 1059 varied throughout history. Popes were often 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 jus exclusivae, i.e., a right to veto the selection that Catholic monarchs exercised into the twentieth century.
References
- Mann, Horace K., The Lives of the Popes in the Early Middle Ages, Vol. IV: The Popes in the Days of Feudal Anarchy, 891-999 (1910)
