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 Benedict IX, born Theophylactus of Tusculum in Rome, was the bishop of Rome and ruler of the Papal States for three periods between October 1032 and July 1048. Aged about 20 when first elected, he is clearly the youngest pope in history. He is the only person to have been Pope more than once and the only person ever accused of selling the papacy.
Pope Gregory VI, born Giovanni Graziano in Rome, was bishop of Rome and ruler of the Papal States from 1 May 1045 until his resignation at the Council of Sutri on 20 December 1046.
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 Sergius IV was the bishop of Rome and nominal ruler of the Papal States from 31 July 1009 to his death. His temporal power was eclipsed by the patrician John Crescentius. Sergius IV may have called for the expulsion of Muslims from the Holy Land, but this is disputed. Since his time, the practice that the person who has been elected to the office of pope takes on a new name became a tradition.
Pope Leo II was the bishop of Rome from 17 August 682 to his death. He is one of the popes of the Byzantine Papacy. Described by a contemporary biographer as both just and learned, he is commemorated as a saint in the Roman Martyrology on 28 June.
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 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 XIX, born Romanus, was the bishop of Rome and ruler of the Papal States from 1024 to his death. He belonged to the family of the powerful counts of Tusculum, succeeding his brother, Benedict VIII. Papal relations with the Patriarchate of Constantinople soured during John XIX's pontificate. He was a supporter of Emperor Conrad II and patron of the musician Guido of Arezzo.
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 VI was the bishop of Rome from 30 October 701 to his death. John VI was a Greek from Ephesus who reigned during the Byzantine Papacy. His papacy was noted for military and political breakthroughs on the Italian Peninsula. He was succeeded by Pope John VII after a vacancy of less than two months. The body of the pope was buried in Old St. Peter's Basilica.
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.
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.
The Crescentii were a baronial family, attested in Rome from the beginning of the 10th century and which in fact ruled the city and the election of the popes until the beginning of the 11th century.
Papal appointment was a medieval method of selecting the Pope. Popes have always been selected by a council of Church fathers, however, Papal selection before 1059 was often characterized by confirmation or nomination by secular European rulers or by the preceding pope. The later procedures of the Papal conclave are in large part designed to prohibit interference of secular rulers, which to some extent characterized the first millennium of the Roman Catholic Church, e. g. in practices such as the creation of crown-cardinals and the claimed but invalid jus exclusivae. Appointment may have taken several forms, with a variety of roles for the laity and civic leaders, Byzantine and Germanic emperors, and noble Roman families. The role of the election vis-a-vis the general population and the clergy was prone to vary considerably, with a nomination carrying weight that ranged from nearly determinative to merely suggestive, or as ratification of a concluded election.
The numbering of "Popes John" does not occur in strict numerical order. Although there have been twenty-one legitimate popes named John, the numbering has reached XXIII because of two clerical errors that were introduced in the Middle Ages: first, antipope John XVI was kept in the numbering sequence instead of being removed; then, the number XX was skipped because Pope John XXI counted John XIV twice.
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.
