"Hostilian (Latin: Gaius Valens Hostilianus Messius Quintus; died November 251) was Roman emperor from July to November 251. Hostilian was born to Decius and Herennia Etruscilla ...
at an unknown date and elevated to Caesar in May 251 by Decius, the same month as his older brother, Herennius Etruscus, was raised to co-emperor. After Decius and Herennius Etruscus were killed at the Battle of Abritus, an ambush by the Goths, Trebonianus Gallus was proclaimed emperor by the legions. Almost immediately, he elevated Hostilian to co-emperor and his own son, Volusianus, to Caesar. Hostilian died in November 251, either due to plague or being murdered by Trebonianus Gallus." - (en.wikipedia.org 10.08.2021)
