Gnaeus Domitius Ahenobarbus was a consul

Consul

Consul was the highest elected office of the Roman Republic and an appointive office under the Empire. The title was also used in other city states and also revived in modern states, notably in the First French Republic...

 of Rome

Roman Republic

The Roman Republic was the period of the ancient Roman civilization where the government operated as a republic. It began with the overthrow of the Roman monarchy, traditionally dated around 508 BC, and its replacement by a government headed by two consuls, elected annually by the citizens and...

 in 193 BC.

As plebian

Plebs

The plebs was the general body of free land-owning Roman citizens in Ancient Rome. They were distinct from the higher order of the patricians. A member of the plebs was known as a plebeian...

 aedile

Aedile

Aedile was an office of the Roman Republic. Based in Rome, the aediles were responsible for maintenance of public buildings and regulation of public festivals. They also had powers to enforce public order. There were two pairs of aediles. Two aediles were from the ranks of plebeians and the other...

 in 196 BC, he successfully prosecuted, in conjunction with his colleague Gaius Curio, many pecuarii, that is, people who were grazing their cattle on public land. He used the proceeds to build a temple to Faunus

Faunus

In ancient Roman religion and myth, Faunus was the horned god of the forest, plains and fields; when he made cattle fertile he was called Inuus. He came to be equated in literature with the Greek god Pan....

 in the island of the Tiber

Tiber

The Tiber is the third-longest river in Italy, rising in the Apennine Mountains in Emilia-Romagna and flowing through Umbria and Lazio to the Tyrrhenian Sea. It drains a basin estimated at...

 during his praetor

Praetor

Praetor was a title granted by the government of Ancient Rome to men acting in one of two official capacities: the commander of an army, usually in the field, or the named commander before mustering the army; and an elected magistratus assigned varied duties...

ship in 194 BC. He was then elected to the consul

Roman consul

A consul served in the highest elected political office of the Roman Republic.Each year, two consuls were elected together, to serve for a one-year term. Each consul was given veto power over his colleague and the officials would alternate each month...

ship in 192 BC, in which he fought and defeated the Boii

Boii

The Boii were one of the most prominent ancient Celtic tribes of the later Iron Age, attested at various times in Cisalpine Gaul , Pannonia , in and around Bohemia, and Transalpine Gaul...

, although he remained in their country until the following year, when he was succeeded by the consul Scipio Nasica

Publius Cornelius Scipio Nasica

Publius Cornelius Scipio Nasica was a consul of ancient Rome in 191 BC. He was a son of Gnaeus Cornelius Scipio Calvus...

. In 190 BC, he served as legate

Legatus

A legatus was a general in the Roman army, equivalent to a modern general officer. Being of senatorial rank, his immediate superior was the dux, and he outranked all military tribunes...

 with Lucius Cornelius Scipio Asiaticus

Scipio Asiaticus

Lucius Cornelius Scipio Asiaticus was a Roman general and statesman. He was the son of Publius Cornelius Scipio and the older brother of Publius Cornelius Scipio Africanus...

 in the war against Antiochus the Great

Antiochus III the Great

Antiochus III the Great Seleucid Greek king who became the 6th ruler of the Seleucid Empire as a youth of about eighteen in 223 BC. Antiochus was an ambitious ruler who ruled over Greater Syria and western Asia towards the end of the 3rd century BC...

.

In his consulship one of his oxen is said to have uttered the warning "Roma, cave tibi."