Battle of Garigliano
1504 CE.
Shown on the map at 41.217°, 13.567°.
The Battle of Garigliano was fought on 29 December 1503 between a Spanish army under Gonzalo Fernández de Córdoba and a French army commanded by Ludovico II, Marquis of Saluzzo, resulting in a decisive Spanish victory.
Text from the Wikipedia article Battle of Garigliano (1503), licensed CC BY-SA 4.0.