The Battle of Assietta, also known as "bataja dl'Assiëtta" in Piedmontese and "bataille du col de l'Assiette in French", was fought on 19 July 1747 on the ridge between Val Chisone and Val di Susa (Piedmont); it was a significant episode of the War of the Austrian Succession, a conflict that shocked Europe in the mid-eighteenth century. The Assietta is a barren hill that dominates a steep valley from which the French troops will then ascend, located at over 2500 meters on the watershed between the Susa valley and that of the Chisone: its control allows it to be able to intervene quickly in a valley or in the 'other. Foreseeing that the French would pass through it as had already happened in the 1745 campaign, Charles Emmanuel III ordered it to be entrenched and garrisoned with 13 infantry battalions. The corps destined for Assietta was composed of Savoy and Austrian troops under the command of Lieutenant General Giovanni Battista Cacherano di Bricherasio. The entrenchments were built in such a way as to allow a 360° defense. The key point of the entire defensive perimeter, however, was the summit of Gran Serin, on which the three best battalions at the Piedmontese general's disposal were deployed. However, the French spies warned the marshals that the enemy was fortifying itself on Assietta, and therefore it was decided to attack immediately, to crush those armed forces that could have hindered a possible siege of the fort of Exilles. The French were 32 strong battalions, against the 13 Austro-Sardinians, of which ten were actually engaged in combat. On 22 July a proclamation from King Carlo Emanuele III of Savoy invited the subjects to thank God for having allowed the Piedmontese soldiers to repel: «The enemies who in much greater numbers had come to attack with great vehemence our entrenchments on the Sieta hill at above d'Exilles with them having lost six standards, the same general who commanded them, many first rank officers and five or six thousand men dead, wounded and prisoners".

Last year the Piedmontese Legislative Assembly approved a law, which officially recognizes the date of 19 July, the anniversary of the historic battle of Assietta, as “Festa del Piemonte – Festa dël Piemont”< /b>.