Battle of Campo delle Mosche
1359 CE.
Shown on the map at 43.660°, 10.630°.
The Battle of Campo delle Mosche (Battle of the Field of the Flies) took place on 23 July 1359 in the district of Pontedera in the state of Pisa, Italy between the forces of Florence and those of the mercenary Great Company. It resulted in a victory for the Florentine forces.
Text from the Wikipedia article Battle of Campo delle Mosche, licensed CC BY-SA 4.0.