Siege of Bourbon
761 CE.
Shown on the map at 46.583°, 3.057°.
The siege of Bourbon was a Frankish siege of the Aquitanian fortress of Bourbon in 761 during the Aquitanian War. The Frankish army under King Pepin the Short invested, stormed and burned the fortress, taking the garrison prisoner.
Text from the Wikipedia article Siege of Bourbon (761), licensed CC BY-SA 4.0.