Artavasdes was at first an ally of Rome, but, when the Parthian king Orodes II invaded Armenia, he joined the Parthian side and gave his sister in marriage to Pacorus, Orodes' son. When the Romans under Mark Antony entered Armenia (36), Artavasdes again gave his allegiance to Rome. Later deserting the Roman forces, Artavasdes was captured by Antony when he reinvaded Armenia (34). Artavasdes was taken to Alexandria, where he was later killed by the Ptolemaic queen Cleopatra. Artavasdes was also an accomplished Greek scholar who composed dramas and other literary works.