The historical section, created in the early twentieth century, including the documentation from the foundation
up year 1863, is full of about 5,000 folders, 3,600 books, 700 maps, and also includes archives aggregates of
existing hospitals and the ancient Duchy of Milan.
In the historical section, are joined, now divorced from the original backgrounds, diplomatic collections:
Diplomas, Codes, Autographs, Residues of archives inherited, with documents dating from the eleventh
century, 16,000 scrolls, sometimes full of miniatures and provided with seals and a significant historical