 The Monte Viso Tunnel was also used for military reasons, and in 1486 it was the same Marquis Lodovico II who used the tunnel to organize his escape from Saluzzo to France.The king of France Charles VIII traveled with his army and artillery in order to make strategic moves useful to deployment in the Battle of Fornovo.In 1499 the tunnel was traversed by Louis XII, and in 1525 by his successor François I, who with his army headed to Italy to fight against the Emperor Charles V. On this occasion, the tunnel and the trail were also expanded to make them more viable to the artillery passage.