Battle of Isonzo
1477 CE.
Shown on the map at 45.950°, 13.550°.
The battle of Isonzo was a military engagement between the Ottoman army and Venetians near the river of Soča during the Ottoman–Venetian War (1463–1479). The Ottomans emerged victorious during the battle.
Text from the Wikipedia article Battle of Isonzo (1477), licensed CC BY-SA 4.0.