On the Meuse, in the border region of today's Belgium, sat a tribe Caesar held to be descendants of the Cimbri and Teutones. Their fate is one of the darkest episodes of the Gallic War.
The Atuatuci belong to the peoples Caesar counted among the Germani cisrhenani – the Germanic tribes dwelling "on this side of the Rhine" in the land of the Belgae. Their territory lay on the middle Meuse, in the area of today's Belgian Namur. Their history is short but striking: it begins with a migration legend and ends with one of the cruellest scenes in Caesar's account of the Gallic War.
Caesar tells a remarkable origin story: the Atuatuci were descendants of the Cimbri and Teutones, those Germanic migrating peoples who around 113–101 BC had thrown Rome into terror. When these moved south, they are said to have left part of their baggage and property under the guard of 6,000 men. These guardians, says Caesar, settled on the Meuse and were the ancestors of the Atuatuci. Whether this is historically true or an explanatory legend cannot be said for certain – but it shows how much the memory of the Cimbrian terror still echoed two generations later.
The Atuatuci lived in the land of the Belgae, that group of tribes in northern Gaul whom Caesar held to be the bravest, "because they are farthest from the civilisation and culture of the province" and dealt most often with the warlike Germani beyond the Rhine. The Atuatuci were considered especially warlike even among these fierce neighbours. They supplied warriors for the great Belgic revolt against Caesar and were allied with the Nervii and other Belgic tribes.
When Caesar subdued the Belgae in 57 BC, the Atuatuci withdrew into their strongest oppidum – a fortress on a steep rock, by Caesar's description almost impregnable by nature, accessible on only one side. From there the warriors mocked the Romans as they rolled up siege towers: how could such small men move such heavy towers? But when the tower approached, the Atuatuci were dismayed at Roman technology and sued for peace.
Caesar granted negotiations and had the Atuatuci hand over their weapons. But in the night, according to Caesar's account, the Atuatuci attacked the Roman lines with secretly retained weapons. The sortie was bloodily beaten back – around 4,000 warriors fell. The next day Caesar had the oppidum stormed. What followed he records soberly himself: the entire surviving population, 53,000 people, was sold into slavery as war booty. It is one of the most shocking figures of the whole Gallic War.
The 53,000 people sold are a key piece of evidence for the dark side of Caesar's campaigns. The Gallic War was no chivalrous contest but a war of conquest and plunder in which the slave trade played an enormous role. Whether the figure is exact is uncertain – Caesar had an interest in making his successes look great. But the order of magnitude is real: whole tribes could be wiped out or enslaved in a single campaign. The Atuatuci are the bitter model of this.
The Atuatuci did not vanish entirely. Caesar mentions that some of those sold or escaped later reappeared, and the name lived on in the region for a while. But as an independent, powerful tribe the Atuatuci were broken after 57 BC. Their territory became part of Roman Gaul; the memory of the Cimbrian heritage and the fortress on the Meuse survived only in Caesar's account.
The location of the Atuatuci fortress is disputed to this day. An often-named candidate is a ridge near Namur or in the wider area on the Meuse/Sambre – such as the region around Thuin or the Kesselberg. It cannot be located with certainty; Caesar's description of a steep rock accessible on only one side fits several places. As so often in early history: the text is there, the ground is silent – and all concrete locations remain interpretation.
The Atuatuci lead to an important insight: not all Germani lived "to the right of the Rhine". Caesar knew a whole group of Germanic tribes on this side of the river, in the midst of the land of the Belgae – besides the Atuatuci, for example the Eburones, Condrusi and Segni. The border between "Celts" and "Germani" was thus no clean line at the Rhine but a blurred zone in which peoples mixed. The Atuatuci, with their claimed Cimbrian heritage, are a prime example of this interweaving.
The Atuatuci are no people with a rich tradition, but their history bundles three great themes of the Germanic-Celtic early period: the aftermath of the Cimbrian migration, the warlike world of the Belgae and the brutal reality of Caesar's conquest. In a single chapter we meet migration legend, fortress war, Roman siege technology and the catastrophe of the slave sale. For an honest picture of the age such stories belong – precisely because they show what conquest meant for the conquered.
Almost everything about the Atuatuci stands in Caesar's "De bello Gallico" (Book II) – a brilliantly written but highly interested source: Caesar was perpetrator and chronicler at once. The descent from the Cimbri, the nightly betrayal and the figure of 53,000 all come from his pen and can hardly be checked independently. The archaeology of the Belgic oppida gives a general setting but no secure find-spot. We therefore keep evidence and interpretation strictly apart.
The Atuatuci belonged to a group Caesar names expressly: the Germani cisrhenani, the "Germani on this side". Besides them he counted the Eburones, the Condrusi, Segni, Caerosi and Paemani. These tribes lived west of the Rhine, in the midst of Belgic neighbours, but were regarded – by their own tradition and by Caesar – as of Germanic origin. Their existence is one of the strongest pieces of evidence that the famous "Rhine border" between Celts and Germani was a Roman ordering scheme and no ethnic reality. In truth the peoples had been mixing at this river for centuries.
The fate of the Atuatuci throws a spotlight on the economy of war. For a Roman general, prisoners were hard cash: slave traders followed the legions, and a victory like that over the Atuatuci brought immediate profit. Caesar financed his campaigns – and his political career in Rome – in good part from such booty. The sober bookkeeping with which he notes the 53,000 sold is therefore no slip but system. Whoever knows the Vikings for their slave trade should know: Rome too built its power partly on the trade in human beings.
"He sold all the booty of that place. Of those sold the number was reported to him by the buyers as 53,000."after Caesar, De bello Gallico II,33 (public domain, own translation)
Cimbri & Teutones · The Eburones · The Nervii.
