Dio Cassius first reports that Domitius, "while still governing the districts along the Ister Danube, had intercepted the Hermunduri, a tribe which for some reason or other had left their own land and were wandering about in quest of another, and he had settled them in a part of the Marcomannian territory".
The Altar of Domitius Ahenobarbus is an ancient Roman monument once thought to be an altar, discovered in the Campus Martius.
Gnaeus Domitius Afer (died 59) was a Roman orator and advocate, born at Nemausus (Nîmes) in Gallia Narbonensis.