Juventia gens
The gens Juventia, occasionally written Jubentia, was an ancient plebeian family at Rome. After centuries of obscurity, the gens emerges into history with the appearance of Titus Juventius, a military tribune, in the beginning of the second century BC. The first of the Juventii to obtain the consulship was Marcus Juventius Thalna in 163 BC. But the family is renowned less for its statesmen than for its jurists, who flourished during the second century AD. Origin. The Juventii were said to have come to Rome from Tusculum, probably during the fourth century BC. Cicero reports a claim, which  he regards as incorrect, that the first of the plebeian aediles was a Juventius, and in fact the Juventii are not mentioned until BC 197, although there is no reason to doubt that the family had already been at Rome for some generations. The nomen "Juventius" is certainly derived from the Latin "juventas", "youth", personified by the goddess Juventas, but the family is probably of Etruscan origin, as the surname "Thalna", borne by a number of the earliest Juventii, has the same meaning; "Juventius" is simply the Latin version of their original name. Praenomina. The earlier Juventii used the praenomina  Titus, Lucius, Manius, Publius, and "Gaius". From the first century BC we also find "Marcus". All were very common names, except for "Manius", which was used by many fewer families. Branches and cognomina. There were several families of the Juventii in the time of the Republic, with the surnames "Celsus, Laterensis, Pedo", and "Thalna". However, several Juventii are mentioned without any surname. "Thalna", occasionally found as "Talna", is an Etruscan name, and was probably the original nomen of the gens, before it came to be known as "Juventia".