Battle of Orthez
1569 CE.
Shown on the map at 43.490°, -0.770°.
The Battle of Orthez was fought during the French Wars of Religion, between 11 and 14 August 1569. Huguenot forces under the leadership of Gabriel de Lorges, Count of Montgomery defeated Royalist forces under Antoine de Lomagne, vicomte de Terride in French Navarre. Following the battle, Huguenot forces killed many of their Catholic prisoners.
Text from the Wikipedia article Battle of Orthez (1569), licensed CC BY-SA 4.0.