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Coordinates: 48°04′54″N 7°21′20″E / 48.081667°N 7.355556°E / 48.081667; 7.355556

Battle of Argentovaria
Part of Roman-Alamanni conflict
DateMay 378
Argentovaria, near Colmar,
modern  France
Result Decisive Western Roman victory
Western Roman Empire Lentienses
Commanders and leaders
Unknown 40,000.[1][unreliable source?]
Casualties and losses
Unknown 31,000 dead[1][unreliable source?]

The Battle of Argentovaria or Battle of Argentaria was fought in May 378 between the Western Roman Empire and the invading army of the Lentienses, a branch of the Alamanni, at Argentovaria (near Colmar, France). The Alemanni were overwhelmed by the Roman legionaries, though they stood their ground bravely. Only 9,000 escaped from the field and Priarius was slain. With this defeat, the Lentienses disappear from history.

The king of the Lentienses, Priarius, died during the battle. Emperor Gratian, who had given the command of the army for the battle to Nannienus and Mallobaudes, gained the title of Alemannicus Maximus.


  1. ^ a b Ammianus Marcellinus, 'History, Book 31.10.2', trans. Walter Hamilton, Penguin Books, 1986