Son of the Parthian king Pacorus, who was made king of Armenia in about AD 110 by his father. When Osroes ousted Pacorus, A. also lost his throne to his own brother Parthamasiris. During the subsequent period, he seems to have made efforts to prevent contact being made between Parthamasiris and his Roman sovereign Trajanus and, in so doing, to gain some recognition for himself. He was unsuccessful in this respect.
M. Karras-Klapproth, Prosopographische Studien zur Gesch. des Partherreiches, 1988
A. Stein, s.v. Exedares,…