Battle of Lucofao
679 CE.
Shown on the map at 49.611°, 4.082°.
The Battle of Lucofao (or Bois-du-Fays) was the decisive engagement of the civil war that afflicted the Frankish kingdoms during and after the reign of Dagobert II (676–79). In the battle, the Neustrian forces of Theuderic III and his majordomo Ebroin defeated the forces of Austrasia under the dukes Pippin and Martin.
Text from the Wikipedia article Battle of Lucofao, licensed CC BY-SA 4.0.