Birth of Trajan Decius in Illyricum.
Approximate marriage year of Herennia Etruscilla to Trajan Decius.
Estimated birth year of Herennius Etruscus to Trajan Decius and Herennia Etruscilla.
Trajan Decius serves as suffect consul.
Trajan Decius serves as governor of Hispania.
Construction of the Baths of Decius are begun in Rome by Trajan Decius.
April
Trajan Decius is proclaimed Emperor by the Danubian armies against Philip I and marches towards Rome.
September
Trajan Decius defeats and kills Philip the Arab at Verona. Trajan Decius becomes Emperor and Herennia Etruscilla Augusta.
September
Trajan Decius defeats and kills Philip the Arab at Verona. Trajan Decius becomes Emperor and Herennia Etruscilla Augusta.
Herennius Etruscus and Hostilian are elevated to Caesar by Trajan Decius.
Trajan Decius issues edicts requiring that everyone sacrifice for the Emperor.
June
Trajan Decius and Herennius Etruscus defeat a Gothic army at the Battle of Nicopolis ad Istrum.
July
The Goths regroup and defeat the Romans, led by Trajan Decius and Herennius Etruscus at the Battle of Beroe.
July
Trajan Decius and Herennius Etruscus are killed at the Battle of Abritus. Trebonianus Gallus becomes Emperor and raises Hostilian to Augustus, while keeping Herennia Etruscilla and Empress.