Battle of Kunovica
1444 CE.
Shown on the map at 43.180°, 22.176°.
The Battle of Kunovica or Battle at Kunovitsa was fought between crusaders led by John Hunyadi and the armies of the Ottoman Empire on 2 or 5 January 1444, near the mountain Kunovica (Suva Planina) between Pirot and Niš, in present-day Serbia. It was part of the Long Campaign.
Text from the Wikipedia article Battle of Kunovica, licensed CC BY-SA 4.0.