Legio V Macedonica was very active during this period, fighting in Germania, Parthia and the civil war. In 185 or 187, the legion was awarded of the title Pia Constans ("Faithful and reliable") or Pia Fidelis ("Faithful and loyal"), after defeating a mercenary army in Dacia.
In 193, the governor of Pannonia Superior, Lucius Septimius Severus marched on Rome to expel Didius Julianus, who had become emperor after the respected old Publius Helvius Pertinax had been lynched by his soldiers. Legio V Macedonica immediately sided with Severus.
A mixed subunit of V Macedonica and XIII Gemina accompanied Severus to Rome, during his war against his other rival Pescennius Niger and against the Parthians. It would be interesting to know the attitude of the soldiers towards Severus' campaign against Clodius Albinus, a former officer of V Macedonica.
Miniatures by Aventine.
Historical information courtesy of Ancient Warfare magazine.