Balbus (cognomen)  Balbus, literally "stammerer", was a cognomen of several ancient Roman gentes. Of the Acilii Balbi, one Manius Acilius Balbus was consul in 150 BC, another in 114 BC. To another family belonged T. Ampius Balbus, a supporter of Pompey, but afterwards pardoned by Julius Caesar. We know also of Q. Antonius Balbus, praetor in Sicily in 82 BC, and Marcus Atius Balbus, who married Julia Minor, a sister of Caesar, and had a daughter Atia, mother of Augustus. The most important of the name were the two Cornelii Balbi, natives of Gades (Cádiz):  Others with the cognomen include: