King Mithridates 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, Mithridates 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.