Battle of Arausio (105 BC): Rome's Disaster Against the Cimbri

The Battle of Arausio was fought on 6 October 105 BC near Arausio, the modern town of Orange in southern France, between two Roman armies and the migrating Cimbri and Teutones with their allies. Because the Roman commanders refused to work together, both armies were destroyed. Ancient writers ranked it among Rome’s worst disasters, comparable to Cannae, and it led directly to the dominance of Gaius Marius.

Background: the Cimbrian migration

From around 120 BC the Cimbri, a people probably from Jutland, moved south across Europe with the Teutones and later the Ambrones and the Tigurini. They were whole peoples on the move, with families and wagons, searching for land. Their wanderings and Rome’s response are covered in the Cimbrian War.

They defeated a Roman consul at Noreia in the eastern Alps in 113 BC, another in southern Gaul in 109 BC, and in 107 BC the Tigurini killed the consul Lucius Cassius Longinus. Rome’s province of Transalpine Gaul, today’s Provence and Languedoc, was under threat, while Rome was also fighting the Jugurthine War in Africa.

In 106 BC the consul Quintus Servilius Caepio captured Tolosa (Toulouse) and its sacred treasure, the “gold of Tolosa”. Most of it disappeared on the way to Rome, and Caepio was later suspected of stealing it.

Two commanders, two camps

In 105 BC the Senate sent the consul Gnaeus Mallius Maximus with a fresh army to join Caepio, now proconsul, on the Rhône. Mallius was a “new man”, without noble ancestors; Caepio was a proud patrician and refused to accept his authority, even though a consul outranked a proconsul.

The two armies camped separately, apparently on the same side of the river but some distance apart. Before the main battle, the Cimbri overwhelmed a force under Mallius’s legate, the former consul Marcus Aurelius Scaurus. Captured and brought before the Cimbrian council, Scaurus warned them not to cross into Italy; according to ancient accounts the Cimbrian king Boiorix killed him on the spot.

The battle

Mallius negotiated with the Cimbri, and Senate envoys urged the two Romans to cooperate. Caepio, reportedly fearing that Mallius would take the credit for a victory or a settlement, attacked on his own on 6 October.

His army was destroyed and its camp overrun. The Cimbri and their allies then attacked Mallius’s army, which was disheartened and badly placed, and destroyed it as well, with many soldiers driven back against the Rhône. One of the few survivors was a young officer, Quintus Sertorius, who, Plutarch says, swam across the river in armour despite being wounded.

Losses

Livy, as summarised in the Periochae, says that 80,000 soldiers and 40,000 servants and camp followers were killed. Most modern historians consider these numbers inflated, since ancient writers often exaggerated, but there is no doubt that two consular armies, perhaps tens of thousands of men, were lost.

Ancient tradition said the victors destroyed the booty, throwing gold and silver into the Rhône and killing captured horses as an offering to their gods.

Key people

Gnaeus Mallius Maximus was consul in 105 BC. Like Marius, he was a novus homo, the first of his family to reach the consulship, and little is known of his career beyond this defeat.

Quintus Servilius Caepio was consul in 106 BC and a member of an old patrician family. His behaviour before the battle made him, in Roman memory, the classic example of aristocratic pride leading to disaster.

Quintus Sertorius, who survived the battle, later became one of Rome’s most able generals. He fought under Marius against the Cimbri and, in the 70s BC, led a long revolt in Spain against the Sullan regime.

Myths and facts

The phrase “the gold of Tolosa” (aurum Tolosanum) became a Roman proverb for wealth that brings ruin. Later writers linked Caepio’s downfall at Arausio and the misfortunes of his family to the stolen treasure, said to have come from temples. This is a moral story, not history, but the disappearance of the treasure and Caepio’s prosecution are real.

Consequences

The defeat caused panic in Rome, which feared an invasion of Italy. Caepio was stripped of his command; he was later prosecuted, lost his citizenship and went into exile in Smyrna. Mallius was also condemned.

Voters elected Gaius Marius, still in Africa, as consul for 104 BC, breaking the rules on absence and on intervals between consulships. He was re-elected each year to 100 BC. Instead of invading Italy, the Cimbri turned west to Spain, giving Marius time to prepare the army that destroyed the Teutones in 102 BC and the Cimbri at the Battle of Vercellae in 101 BC.

Timeline

• 113 BC: The Cimbri defeat the consul Papirius Carbo at Noreia.
• 107 BC: The Tigurini kill the consul Cassius Longinus in Gaul.
• 106 BC: Caepio captures Tolosa; its treasure vanishes.
• 105 BC: The Cimbri defeat and capture Marcus Aurelius Scaurus.
• 105 BC, 6 October: Caepio’s and then Mallius’s armies are destroyed at Arausio.
• 104 BC: Marius begins the first of five consecutive consulships.

Why it matters

Arausio showed how political rivalry inside the Roman elite could lead to military catastrophe. It broke conventions about who could hold the consulship and for how long, gave Marius unprecedented power, and made Romans accept a leader whose authority rested on an army and on popular support rather than on tradition.