Battle of Narbonne
737 CE.
Shown on the map at 43.184°, 3.003°.
The siege of Narbonne was fought in 737 between the Arab and Berber Muslim forces of Yusuf ibn Abd al-Rahman al-Fihri, Arab Umayyad Muslim governor of Septimania on behalf of al-Andalus, and the Frankish Christian army led by the Carolingian duke Charles Martel.
Text from the Wikipedia article Siege of Narbonne (737), licensed CC BY-SA 4.0.