would be remembered by Romans for a long period, and often incited them to invade Parthia in later events. After this, Antony lured Artavasdes II into a trap with the promise of a marriage alliance. He was taken captive in 34 BC, paraded in Antony's mock Roman triumph in Alexandria, Egypt, and eventually executed by Cleopatra VII of the Ptolemaic Kingdom. Antony attempted to strike an alliance with Artavasdes I of Media Atropatene, whose relations with Phraates IV had recently soured. This was abandoned when Antony and his forces withdrew from Armenia in 33 BC; they escaped a Parthian invasion while Antony's rival Octavian attacked his forces to the west. According to Cassius Dio, Phraates IV murdered the Commagenian King Antiochus I in . Following Antony's suicide in Egypt followed by that of his wife Cleopatra in 30 BC, the Parthian ally Artaxias II reassumed the throne of Armenia. Brief overthrow, diplomatic correspondence with Augustus and death Following the defeat of Antony and Cleopatra of Ptolemaic Egypt at the Battle of Actium in 31 BC, Octavian consolidated his political power and in 27 BC was named Augustus by the Roman Senate, becoming the first Roman emperor. Around this time, Tiridates II of Parthia briefly overthrew Phraates IV, who was able to quickly reestablish his rule with the aid of Scythian nomads. Tiridates fled to the Romans, taking one of Phraates IV's sons with him. In negotiations conducted in 20 BC, Phraates IV arranged for the release of his kidnapped son. In return, the Romans received the lost legionary standards taken at Carrhae in 53 BC, as well as any surviving prisoners of war. The Parthians viewed this exchange as a small price to pay to regain the prince. Augustus hailed the return of the standards as a political victory over Parthia; this propaganda was celebrated in the minting of new coins, the building of a new temple to house the standards, and even in fine art such as the breastplate scene on his statue Augustus of Prima Porta. Along with the prince, Augustus gave Phraates IV an Italian slave-girl named Musa, who quickly became queen and a favourite of Phraates IV, giving birth to Phraataces (Phraates V). Emma Strugnell (2008) has suggested that Augustus' choice to send Musa may have been an attempt to obtain information or influence the Parthian king to the advantage of the Romans. She further adds