The date refers to a battle of Roncesvalles, not to the victory of 778 over Charlemagne, but to the last attempt by the French emperors to conquer the Vascones of Pamplona to integrate into the empire, of 824. This fact was also the link between the alliance between Eneko Arista and Banu Qasi, in front of the free forces of Count Eblo and the renegade Aznar Galindo. The triumph of that war consolidated the Basque authority in Pamplona and allowed them to impose sovereign power.
The Cultural Week, to be held from 19 to 26 August, will have an exhibition that will also include:
Saturday, 19 August
And the main day, 26 August:
Learn more about the program and the week, here (also inscriptions).