Lucius Valerius Flaccus was a

consul Consul (abbrev. ''cos.''; Latin plural ''consules'') was the title of one of the two chief magistrates of the Roman Republic, and subsequently also an important title under the Roman Empire. The title was used in other European city-states throug ...

of the

Roman Republic The Roman Republic ( la, Res publica Romana ) was a form of government of Rome and the era of the classical Roman civilization when it was run through public representation of the Roman people. Beginning with the overthrow of the Roman Kin ...

in 261 BC with

Titus Otacilius Crassus Titus Otacilius Crassus was a Roman statesman and general during the middle era of the Roman Republic. He was one of the two consuls of 261 BCE, serving with Lucius Valerius Flaccus. During his consulship, he and his consular colleague Flaccus fo ...

. He was possibly the ancestor of all later consuls by that name, since he marks the first appearance of a Lucius Valerius Flaccus on the list of consuls.
He and his consular colleague waged war in

Sicily (man) it, Siciliana (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = Ethnicity , demographics1_footnotes = , demographi ...

. During his consulship the first Roman fleet of war boats were created after Carthaginian example. In 260, this fleet was ready.

Polybius Polybius (; grc-gre, Πολύβιος, ; ) was a Greek historian of the Hellenistic period. He is noted for his work , which covered the period of 264–146 BC and the Punic Wars in detail. Polybius is important for his analysis of the mixed ...

1.20-21

References

Roman patricians 3rd-century BC Roman consuls Flaccus, Lucius {{AncientRome-politician-stub