Cecropius, commander of the Dalmatians, spread the word that the forces of Aureolus were leaving the city, and Gallienus left his tent without his bodyguard, only to be struck down by Cecropius. Source: Internet
Dividing from the central or Italian fourth, three great divisions of the Empire separated into the West, East and Illyricum under Posthumus, Aureolus and Zenobia respectively — divisions that were later legitimized by Diocletian. Source: Internet
In a different and more controversial account, Aureolus forges a document in which Gallienus appears to be plotting against his generals and makes sure it falls into the hands of the emperor's senior staff. Source: Internet
J. Bray (1997), pp.290–291 The decisive battle took place at what is now Pontirolo Nuovo near Milan; Aureolus was clearly defeated and driven back to Milan. Source: Internet
Aureolus was entrusted with the pursuit and deliberately allowed Postumus to escape and gather new forces. Source: Internet
The invasion of the Macriani forced him to dispatch Aureolus with a large force to oppose them, however, leaving him with insufficient troops to battle Postumus. Source: Internet