Battle of the Panaro
1815 CE.
Shown on the map at 44.623°, 10.997°.
The Battle of the Panaro (or Modena or Castelfranco) was a victory for King Joachim Murat's Neapolitan forces over a smaller Austrian force under Frederick Bianchi on 3 April 1815 early in the Neapolitan War. This defeat on the banks on the Panaro River, just south of Modena forced the Austrians to retreat behind the Po River.
Text from the Wikipedia article Battle of the Panaro, licensed CC BY-SA 4.0.