Herennius was born in 227. The full name of Herennius is Quintus Herennius Etruscus Messius Decius. Herennius became the emperor of the Roman state in 251 BC.
Herennius co-led the Roman state with his father. Herennius, the military field is a very successful command. Herennius repressed the uprisings. Herennius also increased the share of Roman troops they received from the booty. For this reason the Roman army loved Herennius very much. But the Goths fought against the Roman state. Herennius and his father came out to end this war. In the last months of 251, these two army battles began. But at the beginning of the war, Herennius was killed by the Got archers.