During the
Carolingian period San Damiano was a village built around a monastery under the supervision of
Saint Ambrose of
Milan. In a document dating to the year 853, San Damiano housed a church dedicated to
Saints Cosmas and Damian. During the
Middle Ages the town did not host any important events. By the 14th century, the town still existed. In the 16th century a
local parish was built by Saint Charles Borromeo, alas San Damiano did not join the parish given its population would be forced to pay a fee for the parish priest's allowance. San Damiano remained in the parish of San Gerardo in Monza. By 1751 it was a separate municipality with 75 inhabitants administered by a consul elected by the population. In 1805, with the proclamation of the
napoleonic Kingdom of Italy the number of residents was 178. The mayor of
Baraggia (future mayor of Brugherio) convinced the citizens of San Damiano to merge with the new municipality. ==Religious life==