 Opened in 1479, it is one of the most ancient tunnels of Italy and maybe one of the most ancient of Europe.The creation of this work was born from the decision of its promoter, Marquis of Saluzzo Ludovico II Del Vasto.With a philosophical and hostile political orientation at the House of Savoy that threatened the autonomy of his marquisate, he signed an agreement with the king of the Kingdom of Naples, René of Anjou, who was also the Count of Provence, and was therefore a vassal of the king of France Louis XI.