Caius Julius Antiochus Epiphanes Philopappos was the grandson of the last ruling king of Commagene, Antiochus IV. Antiochus IV was deposed by Vespasian in 72 AD when it was felt that the Commagenian dynasty was cozying up to Parthia, Rome's traditional enemy. The entire family was exiled to Greece in disgrace but quickly regained preeminence. Philopappos spent most of his life in Athens serving as a choregos (producer for a chorus) twice and as an agonothetes (magistrate of games) once. He was a member of the deme Besa. In 109 AD, Hadrian appointed him consul suffect and sometime between 105 and 116 AD Philopappos was made a member of the Arval Brethren. He died between 114 and 116 AD. At his death, his sister Balbilla, erected the Monument of Philopappos on Musaios Hill, SW of the Acropolis in Athens.

Sources:Kleiner, D.E.E. “The Monument of Philopappos.” Archaeologica 30 (1983), Athenaeus Deipnosophistae VIII.350c, Josephus Bellum Judaeum 238-243; Pausanias (geographer) I.25.8, Plutarch Quaestiones Convivales 628a & Quomodo ab adulatore discernatur amicus 48e & 66c, IG II² 1759, 3112, 3450, 3451, & 4511; IG V.2.524; Inscriptions du Colosse de Memnon nos. 28-31, & OGIS 408.