 In 1674 the palazzo passed to Bartolomeo’s daughter Margherita, wife of Fabio III Visconti Borromeo Arese; towards the middle of the eighteenth century, when his branch of the Arese became extinct in the male line, it was inherited by the Litta family, whose members were also prominent in the political life of the city.It was in this period that a number of important changes were made to the building.By the late 19th century, it had become the home of the Railroad Administration of Northern Italy.