[1] According to Appian, Mark Antony established client kings in the eastern areas of the Roman empire, which were under his control on condition that they paid a tribute.
In Anatolia, Darius, the son of Pharnaces II and grandson of Mithridates VI, was appointed in Pontus, Polemon in a part of Cilicia and Amyntas in Pisidia.
Strabo wrote that Polemon and Lycomedes of Comana attacked Arsaces, one of the sons of Pharnaces II, in Sagylium because he “was playing the dynast and attempting a revolution without permission from any of the [Roman] prefects …” This stronghold was seized, but Arsaces fled to the mountains where he starved because he was without provisions and water.
Three decades earlier, Pompey had ordered the wells to be obstructed by rocks to prevent robbers from hiding in the mountains.
Darius' reign must have lasted less than a year because Cassius Dio referred to Polemon as a king of Pontus when he was involved in Mark Antony's war against the Parthians in 36 BC.