Gaius Valens Hostilianus Messius Quintus
AD230? ~ AD251
Born after 230 and was the younger brother of Herennius and the son of Decius.
As son of the Emperor he was treated as an imperial prince but was always overshadowed by his older brother.
When Herennius and Decius went to battle the Goths, Hostilian was forced to remain in Rome due to his inexperience. When his father and brother died in battle, fellow soldiers proclaimed the well respected general Trebonianus Gallus as emperor. Rome however, acknowledged the rights of Hostilian and crowned him emperor. In 251 Rome was infected by the plague which Hostilian died of. Trebonianus took over the reign.