Editing Legio II Parthica (section)

===Whittling away===
In the next decades they were used as reinforcements in several provinces within the empire and continued to be used as pawns in the constant battles for the imperial throne of the 3rd century. Emperor [[Gallienus]] (253-268) awarded the legion with the titles ''V Fidelis V Pia'' and ''VI Fidelis VI Pia'' (respectively, "Five" and "Six times loyal and faithful").<ref>{{Cite journal|last=Oman|first=C.|date=1918|title=On the Coins of Severus and Gallienus Commemorating the Roman Legions|jstor=42678499|journal=The Numismatic Chronicle and Journal of the Royal Numismatic Society|volume=4| issue=18 |pages=80–96, ref. 90–91}}</ref>

Where the legion was based when it received these titles from Gallienus is uncertain. Other things being equal one would have thought that [[Valerian (emperor)|Valerian]], father and co-regent with Gallienus, would have wanted to take it to the east with him in the late 250s and that it would have been involved in his defeat and capture by King [[Shapur I|Sapor]] of the Persians at [[Edessa]] in 260. Since it continued as a functioning unit and avoided the subsequent pitfalls of over-identification with the rebellion of the [[Macrianii]] and [[Palmyra]]'s bid for autonomy under [[Zenobia]], and given the honorific title appearing on coins of Gallienus, it is probable that it was under the command of Gallienus, not his father. However unlikely, it is possible that it would have returned to Europe as part of the army of the Macrianii and was forgiven by Gallienus after the latter were defeated. Besides an inscription from Macedonia giving thanks to the god Jupiter for the safety and well-being, "pro salute et incolumitate," of Gallienus, and an inscription from Rome dating to AD 242 giving thanks to the legion's "Genius Gordiana and to Fortuna" for keeping safe emperor Gordian and his spouse, there is little known regarding its fortunes in this period.{{citation needed|date=November 2017}}