Battle of Ferrybridge
1461 CE.
Shown on the map at 53.712°, -1.274°.
The Battle of Ferrybridge, 28 March 1461, was a preliminary engagement between the houses of York and Lancaster before the larger battle of Towton, during the period now known as the Wars of the Roses.
Text from the Wikipedia article Battle of Ferrybridge, licensed CC BY-SA 4.0.