Complex sentence: 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.
Split into simpler sentences: From 1753, it served as the residence of Benedetto of Savoy, son of Charles Emmanuel III and Elisabeth Therese of Lorraine. Consequently, it was named after his courtesy title of Duke of Chablais.