Battle of Camerinum
294 BCE.
Shown on the map at 43.140°, 13.069°.
The Battle of Camerinum in 298 BC took place during the Third Samnite War. In the battle, the Samnites defeated a Roman legion under the command of the propraetor Lucius Cornelius Scipio Barbatus.
Text from the Wikipedia article Battle of Camerinum, licensed CC BY-SA 4.0.