THE ROCCHETTA,the most fortified part of the SFORZA CASTLE,the last defence in case of invasion.Begin by GIAN GALEAZZO VISCONTI (1351-1402)it was completed under LUDOVICO IL MORO (1452-1508) who commissioned the portico on the third side of the courtyard.Is closed in the western corner by the treasury tower,the most secure point of the castle.In the years many ARCHISTARS directed the works as BRAMANTE,FERRINI,FILARETE.
