Although the gens was supposedly of great antiquity, the Cispii only achieved prominence toward the end of the Republic.
[1] The Cispii were probably of Hernician origin, and according to tradition came from Anagnia, a town of the Hernici, during the reign of Tullus Hostilius, the third King of Rome.
A certain Cispius Laevus was said to have come to the defense of Rome while the king was engaged in the siege of Veii, and stationed his forces on one of the two summits of the Esquiline Hill.
[2][3][4] The praenomina used by the Cispii included Lucius, Gaius, and Marcus, all of which were amongst the most common names throughout Roman history.
[5] The only cognomen of the Cispii is Laevus, meaning "left-handed" or "foolish".