The Treaty of Turin, signed in Turin in September 1733, was a secret agreement between Louis XV of France and Charles Emmanuel III (primarily in his role as Duke of Savoy). Charles was promised French military support for the conquest of the Duchy of Milan in exchange for allowing French troops to use his territory in the conquest of Tuscany, the two Sicilies, and other territories. The treaty paved the way for French military activity on the Italian peninsula in the War of the Polish Succession.