Battle of Clitheroe
1138 CE.
Shown on the map at 53.873°, -2.391°.
The Battle of Clitheroe was a battle between a force of Scots and English knights and men at arms which took place on 10 June 1138 during the period of The Anarchy. The battle was fought on the southern edge of the Bowland Fells, at Clitheroe, Lancashire.
Text from the Wikipedia article Battle of Clitheroe, licensed CC BY-SA 4.0.