II. Self-confident after his victories, Antiochus demanded not only the release of Demetrius, but also the return of the all lost lands and renewal of tribute fees. Phraates II, offended by the reply, broke off the negotiations and prepared for battle. Whilst wintering, Antiochus VII quartered himself and his army in Ecbatana, where he completely alienated the local people by forcing them to pay for the upkeep of his soldiers and because, it seems, the soldiers assaulted the locals. Thus, when Phraates II attacked the Seleucid army in its winter quarters during the spring of 129 BC, the local population supported him. Antiochus was defeated and died, either in battle or by committing suicide, ending Seleucid rule east of the Euphrates. Phraates, relishing over the death of Antiochus, is reported to have said the following before the latter's corpse; "Your boldness and drunkenness, Antiochus, caused your fall; for you expected to drink up the kingdom of Arsaces in huge cups." Phraates II succeeded in capturing Seleucus and Laodice, two of Antiochus' children who had accompanied their father on campaign. Phraates II later married Laodice and showed Seleucus (not to be confused with his cousin Seleucus V) great favour. He allowed Antiochus a royal funeral and later returned the body to Syria in a silver coffin along with Seleucus. Phraates II also released Demetrius, who had been held by the Parthians as a hostage for several years, to become king of the Seleucid realm for a second time. Syria, which was now all that was left of the Seleucid empire, lacked military power and Phraates II apparently planned to invade it. However, on the eastern front, various nomadic tribes already infiltrating and usurping the Saka and Tokhari destroyed the Greco-Bactrian Kingdom, penetrated to the borders of the realm in 129 BC, and threatened the Parthian realm. The king had to rush to the eastern front, installing Himeros as governor of Babylon, who quickly became a tyrant. Phraates II marched east, his army including a large force of captured Seleucid soldiers from the army of the late Antiochus. These soldiers ultimately refused to fight for the Parthian king, and he was defeated and killed in battle. Coinage and Imperial ideology Phraates refrained from using the title of "King of Kings" in his coinage, and instead used the title of "great king". Like the rest of the Parthian kings, he used the title