Gnaeus Pompeius | Gnaeus Servilius Caepio | Gnaeus Domitius Corbulo | Gnaeus Octavius | Gnaeus Naevius | Gnaeus Julius Agricola | Gnaeus Pompeius Trogus | Gnaeus Cornelius Scipio Hispanus | Gnaeus Cornelius Scipio Asina | Gnaeus Cornelius Cinna Magnus | Gnaeus Arrius Antoninus | Domitius Marsus | Domitius |
In 81 Hiempsal was driven from his throne by the Numidians themselves, or by Hiarbas, ruler of part of the kingdom, supported by Gnaeus Domitius Ahenobarbus, the leader of the Marian party in Africa.
When consul in 121 BC he campaigned in Gallia Transalpina (in the modern day Auvergne and Rhône-Alpes regions) with Gnaeus Domitius Ahenobarbus against the Gallic tribes of the Allobroges and Arverni whom he defeated.