The Castello del Buonconsiglio is the biggest and most important monumental complex of the region of Trentino Alto Adige. From the thirteenth century till the end of the XVIII, it was residence of the Prince Bishops of Trento, and it is composed of a series of buildings of various ages, enclosed within a circle of walls in a slightly elevated position in respect to the city. Castelvecchio is the oldest part, dominated by an imposing cylindrical tower; the Magno Palazzo which is the sixteenth century enlargement in the form of the Italian Renaissance, wanted by the prince bishop and cardinal Bernardo Cles (1485-1539); at the end of the Seventeenth Century however the baroque Guinta Albertina returned. At the southern end of the complex is Torre Aquila that holds the famous Cycle of the Months, one of the most fascinating pictorial cycles of profane theme of the late Middle Ages.
Especially given the presence of vast cycles of frescoes, of extraordinary interest are the decorative apparatus inside, done by the bishops in prevalence in the late-medieval and renaissance periods. After the end of the bishopric (1803) the castle was used as barracks; restored, in 1924 it became the seat of the National Museum, and since 1973 it belongs to the autonomous Province of Trento. Currently, the main focus point of a museum system formed by four castles, among the most charming and prestigious of the Trentian territory: that of Trento refers to the Stenico Castle, in the Valli Giudicarie, Castel Beseno, in the Valley of the Adige, Trento and Rovereto, and Castel Thun, in Valle di Non.