Palazzo Madama and Casaforte degli Acaja are an architectural and historical complex located in the central Piazza Castello in Turin. It is a UNESCO World Heritage Site, as part of the Savoy Residences serial site. The Civic Museum of Ancient Art is located in the building.
It is a combination of two thousand years of Turin's history, from an ancient eastern gate of the Roman colony of Julia Augusta Taurinorum to a defensive stronghold, then to a real castle, symbol of Savoy power until at least the 16th century, when the current Royal Palace, as the seat of the Duke of Savoy.
The western part of the first medieval complex was later called Palazzo Madama because it was first inhabited by Madama Cristina of Bourbon-France, known as the "first Royal Madama", in the period approximately 1620-1663, then by Maria Giovanna Battista of Savoy-Nemours, known as the "second Royal Madama", in the period 1666-1724. It was for the latter that the current facade was designed, in 1716-1718, by the court architect Filippo Juvarra.