Pacorus is known to have ruled Armenia in the second century and is the only Pacorus to be appointed as King of Armenia by a ruling King of Parthia who was removed by Lucius Verus. During the Roman Parthian War of 161-166, Vologases IV of Parthia in 161/162 entered the Roman Client Kingdom of Armenia, expelled the Roman Client Armenian King Sohaemus and installed Pacorus as a Parthian Client King of Armenia.