Severus was of the gens Petronia. His father was Quintus Petronius Severus, born c. 70 AD, was a distinguished General and had a sister named Petronia Vara, born c. 75 AD.
Severus belonged to the gens Petronia. His father, Quintus Petronius Severus, born around 70 AD, was a renowned General and had a sister named Petronia Vara, born around 75 AD.