Benedict X, born Giovanni, was elected to succeed Pope Stephen IX on 5 April 1058, but was opposed by a rival faction that elected Nicholas II. He fled Rome on 24 January 1059 and is today generally regarded as an antipope.
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.
William I of Hauteville, known as William Iron Arm, was a Norman adventurer who was the founder of the fortunes of the Hauteville family. One of twelve sons of Tancred of Hauteville, he journeyed to the Mezzogiorno with his younger brother Drogo in the first half of the eleventh century (c.1035), in response to requests for help made by fellow Normans under Rainulf Drengot, count of Aversa.
Drogo of Hauteville was the second Count of Apulia and Calabria (1046–51) in southern Italy. Initially he was only the leader of those Normans in the service of Prince Guaimar IV of Salerno, but after 1047 he was a territorial prince owing fealty directly to the Emperor.
Humphrey of Hauteville, surnamed Abagelard, was the count of Apulia and Calabria from 1051 to his death.
Guaimar IV was Prince of Salerno (1027–1052), Duke of Amalfi (1039–1052), Duke of Gaeta (1040–1041), and Prince of Capua (1038–1047) in Southern Italy over the period from 1027 to 1052. He was an important figure in the final phase of Byzantine authority in the Mezzogiorno and the commencement of Norman power. He was, according to Amatus of Montecassino, "more courageous than his father, more generous and more courteous; indeed he possessed all the qualities a layman should have—except that he took an excessive delight in women."
The Duchy of Gaeta was an early medieval state centered on the coastal South Italian city of Gaeta. It began in the early ninth century as the local community began to grow autonomous as Byzantine power lagged in the Mediterranean and the peninsula due to Lombard and Saracen incursions.
Richard Drengot was the count of Aversa (1049–1078), prince of Capua and duke of Gaeta (1064–1078).
Robert I, was count of Aversa and prince of Capua from 1106, on the death of his elder and heirless brother Richard. Robert was the second eldest son of Jordan I of Capua and Gaitelgrima, daughter of Guaimar IV of Salerno.
The counts of Tusculum, also known as the Theophylacti, were a family of secular noblemen from Latium that maintained a powerful position in Rome between the 10th and 12th centuries. Several popes and antipopes during the 11th century came from their ranks. They created and perfected the political formula of noble-papacy, wherein the pope was arranged to be elected only from the ranks of the Roman nobles. The Pornocracy, the period of influence by powerful female courtesans of the family, also influenced papal history.
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.
Ptolemy II was the count of Tusculum and consul of the Romans from 1126 to his death. He was the son and successor of Ptolemy I.
Gregory I was the Count of Tusculum sometime between 954 and 1012. Consul et dux 961, vir illustrissimus 980, praefectus navalis 999. He was the son of Alberic II, and Alda of Vienne. His half-brother was Pope John XII.
Gregory III was the son of Gregory II. He was the Count of Tusculum from 1058, when his father died. He is usually considered to stand at the fore of the family of the Colonna.
Alberic III was the Count of Tusculum, along with Galeria, Preneste, and Arce, from 1024, when his brother the count Roman was elected Pope John XIX, until his own death. He was a son of Gregory I and Maria, brother of Popes Benedict VIII and John XIX, and brother-in-law of Thrasimund III of Spoleto.
The Norman conquest of southern Italy lasted from 999 to 1194, involving many battles and independent conquerors.
Peter was a medieval Roman noble. Like his father, he carried the illustrious title of Romanorum patricius, consul, dux et senator, implying his secular command over Rome and its militia. He was the son of Alberic III, Count of Tusculum. As a result, he was a descendant of Theophylact I, Count of Tusculum.
The Tusculan Papacy was a period of papal history from 1012 to 1048 where three successive relatives of the counts of Tusculum were installed as pope.
Pandulf or Paldolf was the first Lombard lord (dominus) of Capaccio in the Principality of Salerno.