The gens Plancia was a minor plebeian family of equestrian rank at ancient Rome. Few members of this gens are mentioned in the time of the Republic, but a family of the Plancii rose to prominence from the time of Vespasian, and held a number of important magistracies through the time of Hadrian. Other Plancii are known from inscriptions. Origin The nomen Plancius is derived from the common Latin surname Plancus, originally referring to a person with flat feet. The Plancii must therefore have been Latins. Chase classifies them among those families that either originated at Rome, or cannot be shown to have originated anywhere else. However, the Plancii known to Cicero hailed from Atina, a town in southern Latium that had been taken during the Samnite Wars. Members Gnaeus Plancius, an eques who served under Publius Licinius Crassus, consul in 97 BC. Plancius became a publican, and was influential in his field, pressing for a law reducing the amount that the publicani had to pay for the taxes in Asia. He was an early supporter of Caesar, who reduced the fee in 59 BC, to the great annoyance of the aristocracy. Gnaeus Plancius Cn. f., quaestor in Macedonia in 58 BC, and tribune of the plebs in 56. Elected aedile in 54, he was accused of sodalitium, a form of electoral bribery, but was successfully defended by Cicero. He supported Pompeius during the Civil War, and afterward lived in exile at Corcyra. Marcus Plancius Varus, governor of Bithynia and Pontus, and subsequently of Achaia and Asia. He had previously served as one of the decemviri stlitibus judicandis, quaestor, and tribune of the plebs, according to an inscription dating to the reign of Vespasian. Plancia M. f. Magna, the wife of Gaius Julius Cornutus Tertullus, and high priestess of Artemis at Perga. Gaius Julius P. f. Plancius Varus Cornutus Tertullus, consul suffectus for September and October of AD 100, together with Pliny the Younger. He was governor of several provinces at various times, including Crete and Cyrenaica, Gallia Narbonensis, Bithynia and Pontus, and finally Asia. Gaius Julius C. f. P. n. Plancius Varus Cornutus Tertullus, son of the governor Tertullus. Gaius Plancius M. f. Varus, consul in an uncertain year during the reign of Hadrian. Gaius Plancius, named in an inscription from Troesmis in Moesia Inferior, dating to AD 163. Titus Plancius T. f., a soldier named in an inscription