The gens Betiliena was a Roman

Ancient Rome

Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 family known from the early decades of the imperial era

Roman Empire

The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

. It is known chiefly from two individuals. Betilienus Bassus was triumvir monetalis

Moneyer

A moneyer is someone who physically creates money. Moneyers have a long tradition, dating back at least to ancient Greece. They became most prominent in the Roman Republic, continuing into the empire.-Roman Republican moneyers:...

in the reign of Augustus

Augustus

Augustus ;23 September 63 BC – 19 August AD 14) is considered the first emperor of the Roman Empire, which he ruled alone from 27 BC until his death in 14 AD.The dates of his rule are contemporary dates; Augustus lived under two calendars, the Roman Republican until 45 BC, and the Julian...

, and is probably the same man who was later put to death by order of Caligula

Caligula

Caligula , also known as Gaius, was Roman Emperor from 37 AD to 41 AD. Caligula was a member of the house of rulers conventionally known as the Julio-Claudian dynasty. Caligula's father Germanicus, the nephew and adopted son of Emperor Tiberius, was a very successful general and one of Rome's most...

 in AD 40. Lucius Betilienus Varus was an architect, who built an aqueduct and several public buildings at Aletrium

Alatri

Alatri is a town and comune of province of Frosinone in the Italian region of the Lazio, with c. 30,000 inhabitants. A part of the traditional region of Ciociaria, it is famous for its megalithic acropolis.-History:...

, a city in Latium

Latium

Lazio is one of the 20 administrative regions of Italy, situated in the central peninsular section of the country. With about 5.7 million residents and a GDP of more than 170 billion euros, Lazio is the third most populated and the second richest region of Italy...

, where the gens may have originated.