Gaius Vibius Volusianus
? ~ AD253
Gaius Vibius Volusianus of unknown birth date was son to Trebonianus.
In 251 he was given the position of Caesar after the death of Decius, and his father keen to replace Hostilian as ruler adopted Hostilian to maintain the closeness to the throne. When Hostilian fell ill from the plague and died, Volusianus was able to replace him as co-emperor with his father.
In an effort to prevent Aemilianus from claiming the throne, both father and son marched outwards from Rome with their army. When their back up legions who had been summoned from Germany never arrived and their soldiers learnt that Aemilianus had already crossed over the Italian border, the army mutinied and murdered both father and son.