What is "decius"

Trajan Decius (; c. 201 – June 251) was Roman Emperor from 249 to 251. In the last year of his reign, he co-ruled with his son Herennius Etruscus until they were both killed in the Battle of Abritus.

Decius was the 3rd-century emperor.

Decius may also refer to:

• Decius (gens) for several other Ancient Romans
• Decius (Exarch), first Exarch of Ravenna 584–585
• Decius Wadsworth, Colonel in the Ordnance Corps of the United States Army who, in 1817, created Wadsworth's cipher
• Filippo Decio (1454–1535), Italian jurist
• Nikolaus Decius (c.1485–1541), German minister and hymn writer
• Tom Cross (computer security), American technology expert who works under the pseudonym Decius, from Decius Wadsworth
• Decius Metellus, fictional Roman detective in the SPQR series

Flavius Decius (floruit 529-546) was a politician of the Eastern Roman Empire. A member of the Decia gens, he was appointed Consul Ordinarius for 529 without colleague.

Decius was the son of Basilius Venantius (consul in 508), and brother of Decius Paulinus (consul in 534); according to Alan Cameron and Diane Schauer, Decius had at least further brother who was appointed to the consulate.

In December 546 Decius is attested as patricius in Rome. That same month, when the King of the Ostrogoths Totila overcame the Byzantine defences and entered the city, Decius along with Rufius Petronius Nicomachus Cethegus, the president of the Senate (who had been consul in 504), and Anicius Faustus Albinus Basilius (who had been consul in 541) fled Rome with general Bessas.