Petraliphas

The Petraliphas or Petraleiphas (Greek: Πετραλ[ε]ίφας), feminine form Petraliphaina (Πετραλίφαινα), were a Byzantine aristocratic family of Italian descent.

The family's ancestor was Peter, a Norman from Alifa, who first came to the Byzantine Empire during the Norman invasion of Robert Guiscard, but later entered the service of Emperor Alexios I Komnenos (r. 1081–1118). The earliest member of the family recorded was Alexios Petraliphas, according to John Kinnamos a general in charge of a military force sent by Emperor Manuel I Komnenos (r. 1143–80) to his ally Kilij Arslan II, Sultan of Rûm. According to The Byzantine Family of Raoul-Ral(l)es (1973) by Sterios Fassoulakis, Alexios Petraliphas married Anna Raoul, a daughter of John Roger Dalassenos (Raoul) and Maria Komnene. However, Kinnamos records that Anna was a daughter of John II Komnenos (r. 1118–43) and Piroska of Hungary. A son of Alexios Petraliphas and Anna Raoul reportedly married Helena of Bohemia. Helena was a daughter of Frederick of Bohemia and Elizabeth of Hungary; Elizabeth was a daughter of Géza II of Hungary and Euphrosyne of Kiev.

During the reign of Manuel I Komnenos, alongside Alexios, a Nikephoros Petraliphas is recorded as a distinguished general. Although the relation between them is unknown, perhaps they were among the four Petraliphas brothers from Didymoteichon recorded by Niketas Choniates. A Theodora Antiochitissa Petraliphaina is mentioned on a seal dated to c. 1200. Antiochitissa means "woman from Antioch".

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