Battle of Châlons (274)
In the Battle of Châlons, fought in 274 on the site of modern Châlons-en-Champagne, France, Roman Emperor Aurelian defeated Emperor Tetricus I of the Gallic Empire, whose territories were rejoined with the Roman Empire after 14 years of separation.
Background
Having subdued revolts in the eastern Roman Empire, Aurelian began preparing to reconquer the Gallic Empire by early 274. Meanwhile, Tetricus' hold on his domain was steadily weakening, facing continuous raids from Germanic tribes and internal troubles with the rebellion of Faustinus, a provincial governor.Tetricus ordered his troops to leave the Rhine and march southward, where they met the Roman army in the fields of Châlons-sur-Marne.
Battle
Aurelian's army was better trained and well commanded, and when Tetricus was captured in the midst of the fighting, the Gallic army disintegrated and was torn apart by Aurelian's troops. The battle was remembered for years for its high death toll.Aftermath
The costly battle made it much harder for Aurelian to defend the Rhine area. In the years to come, Alamanni and Franks invaded, taking forts and destroying cities.Tetricus and his son were taken to Rome and paraded in a triumph. Tetricus was spared further punishment; instead, Aurelian made him a Roman administrator, a corrector Lucaniae, overseeing the region Lucania in southern Italy.
Historical controversies
Historians dispute whether Tetricus actually wished to fight at Chalons. Various older accounts portray him as unhappy with his position as Gallic emperor. According to these, Tetricus deliberately placed his army in a disadvantageous situation and deserted at the outset of the battle, having previously arranged the elaborate treachery with Aurelian. However, modern historians have demurred, considering the story of Tetricus' disloyalty propaganda fomented by Aurelian. As a simple matter of logic, Aurelian might have prevented the heavy casualties to his army by having Tetricus ordinarily surrender. The empire was in desperate need of manpower to protect Gaul from the barbarian incursions, and the slaughter of Chalons left the Rhine frontier dangerously defenseless and exposed to the invasions of Franks and Alemanni.But the narrative of 18th century historian Edward Gibbon appears to answer these objections: he states that the Gallic army revered the memory of Postumus and would have deposed or killed Tetricus if he tried to surrender Postumus' empire without a fight; further, Aurelian could not trust the rebellious army to submit to him permanently unless he broke its spirit with a military defeat.
Another controversy concerns the date of the battle. Although the vast majority of ancient and modern historians place it in 273, or 274, after the fall of Zenobia, Gibbon dates it before on the basis of a letter from Aurelian given in the Augustan History, which implies that Firmus, suppressed in 274, was the last of the usurpers.