1. In the year 172 King Demetrius the Second gathered his army and went to Media to seek additional help for his war against Trypho.
2. When King Arsaces the Sixth of Persia and Media heard that Demetrius had entered his territory, he sent one of his commanders with some troops to capture Demetrius alive.
3. They attacked and defeated the army of Demetrius, took him captive, and brought him back to King Arsaces, who threw him in prison.