AD 251 - Herennius Etruscus

Quintus Herennius Etruscus Messius Decius - was briefly Roman emperor in 251, ruling jointly under his father Decius. His father was proclaimed emperor by his troops in September 249 while in Pannonia and Moesia, in opposition to Emperor Philip the Arab. Decius defeated Philip in battle, and was then proclaimed emperor by the Roman Senate. Herennius Etruscus was elevated to Caesar in 250, then further raised to Augustus in May 251.