In 1900 the entrepreneur Ermengildo Castiglioni decided to have a palace built in Corso Venezia: in his intentions the building had to differentiate itself from all the others, and that is why he commissioned the architect Giuseppe Sommaruga, known for several interesting solutions.This attitude of the client, almost like a seventeenth-century nobleman willing to show his greatness, is found in the building (particularly imposing when compared to the rest of the Italian Art Nouveau) and in the desire to create a building with a rather new style for Italy (the Art Nouveau , in fact) in one of the most