Battle of Fano
271 CE.
Shown on the map at 43.833°, 13.017°.
The Battle of Fano also known as the Battle of Fanum Fortunae was fought in 271 between the Roman and the Juthungian armies. The Romans led by Emperor Aurelian, were victorious.
Text from the Wikipedia article Battle of Fano, licensed CC BY-SA 4.0.