Battle of Roncesvalles

On August 15, 778, while Charlemagne was withdrawing from an unsuccessful campaign in Spain, the rearguard of his army was ambushed in the Roncesvalles pass by the Basques. The attack devastates the Frankish troops, killing Roland, Eggihard, Anselm and most of their men. The event, initially a tragic but secondary episode in Carolingian history, became a founding myth of medieval literature with the *Song of Roland*.

Charlemagne had intervened in Spain to support Muslim emirs opposed to the central power of Cordoba. After the failure of the siege of Zaragoza and the sacking of Pamplona (Basque city), the Frankish army retreated towards Gaul via the Pyrenees. The Basques, knowing the terrain perfectly, ambushed the rearguard, motivated by revenge and the defense of their autonomy.

The Basques exploited the topography wonderfully: ambush in a narrow pass, lightning attack, massacre of the rearguard, then rapid disappearance into the mountains. The Franks, unable to deploy or organize an effective defense in the parade, suffered very heavy losses.

The Roncesvalles ambush did not have any major strategic consequences in the long term, but it marked a halt to the immediate Carolingian ambitions in Spain. It enters the legend thanks to the *Song of Roland*, which makes the Basques Saracens for the purposes of the epic. The event remains the symbol of the fragility of medieval armies in the face of mountain warfare and local resistance.