He defeated King Artavasdes of Armenia and conquered seventy valleys; and the prince Tigranes came as hostage to the Parthians (Justin 42, 2; Strabo, xi.
Artavasdes, king of Armenia (54?-34 B.C.) composed Greek tragedies and histories (Plut.
He also defeated Artavasdes, the king of Great Armenia; his son Tigranes, a hostage in the hands of the Parthians, was only redeemed by the cession of 70 valleys (Strabo Xi.
With this Mesopotamia was regained by the Parthians, and King Artavasdes of Armenia now entered their alliance.
Artavasdes, an Arsacid, usurped the Byzantine throne for two years; Leo V., an Ardzrunian, and John Zimisces, became emperors; whilst Manuel, the Mamegonian, and others were amongst the best generals of the empire.
His reign began with the seizure for eighteen months of Constantinople by his brother-in-law Artavasdes, who temporarily restored the images.