From 1753 , it served as the residence of Benedetto of Savoy , son of Charles Emmanuel III and Elisabeth Therese of Lorraine it was named after his courtesy title of Duke of Chablais .
From 1753 , it served as the residence of Benedetto of Savoy , son of Charles Emmanuel III and Elisabeth Therese of Lorraine . It was named after his courtesy title of `` Duke of Chablais '' .