Peter, Duke of the Romans
Encyclopedia
Peter was a mediaeval Roman noble. He was the son of Alberic III, Count of Tusculum
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Alberic III, Count of Tusculum
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...
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Family tree
Sources
- George L. Williams. Papal Genealogy: The Families And Descendants Of The Popes