Battle of Orbiel River
793 CE.
Shown on the map at 43.240°, 2.427°.
The battle of Orbiel River was a military engagement between the Umayyads of Spain and the Frankish army led by William of Gellone, the Duke of Toulouse. The Umayyads defeated the Franks and returned with great loot.
Text from the Wikipedia article Battle of Orbiel River, licensed CC BY-SA 4.0.