Demetrius II Nicator - Defeat and Captivity

Defeat and Captivity

In 139 BC Parthian activity forced Demetrius to take action. He marched against Mithradates I, king of Parthia and was initially successful, but was defeated in the Iranian mountains and taken prisoner the following year. The Babylonian province of the Seleucid empire became Parthian, but in Syria was the dynasty's grip was reassured under Antiochus VII Sidetes, the younger brother of Demetrius, who also married Cleopatra Thea.

King Mithradates had kept Demetrius II alive and even married him to a Parthian princess named Rhodogune, with whom he had children. However, Demetrius was restless and twice tried to escape from his exile in Hyrcania on the shores of the Caspian sea, once with the help of his friend Kallimander, who had gone to great lengths to rescue the king: he had travelled incognito through Babylonia and Parthia. When the two friends were captured, the Parthian king did not punish Kallimander but rewarded him for his fidelity to Demetrius. The second time Demetrius was captured when he tried to escape, Mithradates humiliated him by giving him a golden set of dice, thus hinting that Demetrius II was a restless child who needed toys. It was however for political reasons that the Parthians treated Demetrius II kindly.

In 130 BC Antiochus Sidetes felt secure enough to march against Parthia, and scored massive initial successes. Now Phraates II made what he thought was a powerful move: he released Demetrius, hoping that the two brothers would start a civil war. However, Sidetes was defeated soon after his brother's release and never met him. Phraates II set people to pursue Demetrius, but he managed to safely return home to Syria and regained his throne and his queen as well.