Petraliphas

The Petraliphas (, feminine form Petraliphaina, ) was a Byzantine noble family that became prominent in the late 12th– and first half of the 13th century.

==History== The family's ancestor was Peter, a Norman possibly 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 his wife, Euphrosyne of Kiev.