Lucius Aurunculeius Cotta

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Lucius Aurunculeius Cotta (died 54 BC) was an officer in the Gallic army of Gaius Julius Caesar. The little we know of Cotta is found in Book V of Caesar's De Bello Gallico. In 54 BC, when Caesar returned from his second expedition to Britain, he found food in short supply so he distributed his eight legions amongst a larger number of Gallic states from which to draw their sustenance during the winter. To the eighth legion, which had recently been raised from across the Po (trans Padum) he added another five cohorts. In command of this legion and the other cohorts, he put Quintus Titurius Sabinus and Lucius Aurunculeius Cotta; these two were appointed Legati (Lieutenant-Generals).[1]


The troops of Sabinus and Cotta were sent by Caesar into the country of the Eburones, in Belgica, most of which lies between the Meuse and the Rhine where they set up Fort Aduatuca in which to winter; the Eburones tribe was under the rule of Ambiorix and Catuvolcus. These two, instigated by the Treveri, collected their men and after a fortnight, fell on a detachment of Romans who were collecting wood; the marauding Eburones went on to assault the Roman Fort. The Roman infantry mounted the ramparts and despatched a squadron of Spanish horse which, falling on the flank of the enemy, routed them in that engagement.

Then, Ambiorix set up a parley with the Romans in which he admitted his debt to Caesar who had taken his side in certain disputes with other Gallic tribes but said that, despite the limited strength of the Eburones, he was compelled to take action by pressure from the other tribes who were determined to win their freedom from the yoke of Rome, he pointed out that a huge force of Germans, greatly angered by Caesar’s successes, were rampaging across the Rhine and offered to give the Romans safe passage to the Fort of either of two nearby legions.

The Roman representatives, Quintus Junius, a Spaniard and Gaius Arpineius, took the news back to the beleaguered Fort. A council of war, attended by the leading officers and NCOs, was formed. During this council, two opposing opinions took form. Speaking first, Cotta argued that they should not move without an order from Caesar, he pointed out that experience had shown them that Germans could be resisted from behind the fortifications of a Roman Fort, that they had plenty of supplies, were within easy reach of assistance from nearby legions and that they should not take at face value either the news or the advice of an enemy.

Sabinus took a grimmer view. Denying that he was motivated by fear, he said that he believed that Caesar was on his way to Italy, that the Germans were about to add to the number of the besieging Eburones and that it seemed that they were about the face the combined wrath of grudge-ridden Germans and Gauls--for surely the militarily weak Eburones would not dare to face a Roman legion otherwise. Moreover, he said it would be better to make for a nearby legion and face the trouble with their comrades than to risk famine through a prolonged siege; the officers told their commanders that whichever view prevailed was not as important as coming to a unanimous decision. Cotta was finally forced to give way and Sabinus prevailed.

The Romans spent the night in disarray, putting together their belongings and preparing to march out of the Fort once morning came; the enemy heard the hubbub in the Fort and prepared an ambush. When dawn broke, the Romans, in marching order (long columns of soldiers with each unit following the other), more heavily burdened than usual left the Fort; when the greater part of the column had entered a ravine, the Gauls assaulted them from either side and sought to harry the rearguard and prevent the vanguard from leaving the Ravine.

Caesar notes that Sabinus lost his mind, running from cohort to cohort and issuing ineffectual orders. Cotta, by contrast, kept calm and did his duty as a commander, in action his duty as a soldier. Due to the length of the column, the commanders could not issue orders efficiently so they passed word along the line to the units to form into a square; the troops fought bravely though with fear and in clashes were successful. Thus, Ambiorix ordered his men to discharge their spears into the troops, to fall back if bested and chase back the Romans when they tried to fall into rank. During the engagement, Cotta was hit full in the face by a sling.

Then Sabinus sent word to Ambiorix to treat for surrender. Ambiorix acceded to the request. Cotta refused to come to terms and remained steadfast in his refusal to surrender. Sabinus, however, followed through with his plan to surrender. However, Ambiorix, after promising Sabinus his life and the safety of his troops, had him surrounded and cut down; the Gauls then charged down en masse onto the waiting Romans where they killed Cotta, still fighting, and the great majority of the troops. The remainder fell back to the Fort where, despairing of help, they slew one another. Only a few men slipped away to inform Titus Labienus, a Lieutenant-General of a nearby legion, of the disaster.

Caesar mentions Cotta a few other times in the Commentarii de Bello Gallico. In book II; 11, During the Belgic campaign, Caesar appointed Cotta and Quintus Pedius to command the cavalry. In book IV; 22, Caesar left Cotta and Sabinus in command of the legions in Gaul to suppress the Menapii and the Morini if they caused trouble while Caesar was carrying out his first invasion of Britain. In Book IV; 38, after the invasion of Britain, Caesar notes that while Labienus was sent to quell the Morini, Cotta and Sabinus returned from devastating the territories of the Menapii who fled into the densest forests in their territory. Caesar recounts, in Book V; 52 how he learnt of the death of Cotta and Sabinus from prisoners captured by the besieged garrison of Quintus Tullius Cicero, another Lieutenant-General, whose force was the next to be attacked after the disaster at Aduatuca . In Book VI; 32, Caesar en passant notes that the name of the Fort, in which Cotta and Sabinus had been encamped during their last days fighting the Eburones, was Aduatuca . In Book VI; 37, Caesar tells how the soldiers at Fort Aduatuca, themselves besieged by the Germans, were frightened by their station in the same Fort in which the legion of Cotta and Sabinus was destroyed.

See also[edit]


Gaius Julius Caesar, The Gallic War, Loeb Edition, 2004.


  1. ^ Transf. meaning: To appoint or choose as deputy (as the official assistant, lieutenant, of a general or governor) (source: Lewis & Short Latin Dictionary).

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