At the age of 15 , he married his second cousin , Princess Marie-Adélaïde of Savoy , the daughter of Victor Amadeus II , Duke of Savoy and Anne Marie d'Orléans .
At the age of 15 , he married his second cousin , Marie Adélaïde of Savoy , the daughter of Victor Amadeus II , Duke of Savoy and Anne Marie d'Orléans .