Peter, Duke of the Romans

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Peter was a mediaeval Roman noble. Like his fathers, he carried the illustrious title of Romanorum patricius, consul, dux et senator ("Patrician, consul, duke, and senator of the Romans"), 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.

Historians use the term Saeculum obscurum to describe the period when the Papacy was under the direct control of the Roman nobility, in particular when it was under the domination of the family of Theophylact, which later became the Colonna family

Family tree[edit]

Theophylact I, Count of Tusculum
Hugh of Italy
(also married Marozia)
Alberic I of Spoleto
d. 925
Pope Sergius III
Alda, daughter of King Hugh
Alberic II of Spoleto
David or Deodatus
Pope John XI
Gregory I, Count of Tusculum
Pope John XII
Pope Benedict VII
Pope Benedict VIII
Pope 1012–1024
Alberic III, Count of Tusculum
d. 1044
Pope John XIX
Pope 1024–1032
Peter, Duke of the Romans, Count of Tusculum
Gaius, Count of Tusculum
Octavianus, Count of Tusculum
Pope Benedict IX

Further reading[edit]

  • George L. Williams. Papal Genealogy: The Families And Descendants Of The Popes