The Palazzo Madama is one of the oldest palaces in Turin. The façade, designed by Filippo Juvarra, is built in a Baroque style and there are frescoed rooms of the 17th and 18th centuries. The palace has had a chequered past, having been converted into a fort in the middle ages and into a castle during the 15th Century complete with two new towers built on the orders of Ludovico D’Acaja. The building saw several changes when it was occupied by the two royal ladies, Marie Christine of France and her daughter-in-law Joanne Baptiste of Savoy Nemours.