The palace is situated in the south-western corner of Costituente square and it is characterized by a portico and terracotta decorations in Renaissance style, similar to the nearby Town hall: its architectural grandeur and elegance reflect the economic and political power of the ancient Bergomi family that owned the building, originally from the city of Bergamo.

[1] The covered passage of the palace is commonly called "portico of Unica", remembering the old shop of confectionery (produced by the National Union Industries of Chocolate and Related) that was once located there.

The origin of the palace, which once belonged to the Buffali family, is not known with certainty, but some documents kept in the archives of the Congregation of Charity of Modena, record the presence in the mid of 15th century of a rich family of notaries called Sàssoli de 'Bergami, that is, originating in the city of Bergamo, of which later they took and kept their surname (Bergami or Bergomi).

[3] An anonymous chronicler described a firefight under the portico of the palace in 1518 between the Mirandola followers of Giovanni Francesco II Pico della Mirandola and the agreed followers of Galeotto II Pico: They met under the portico of Bergami in Borgonovo and were at the hands together shouting one part: - Francesco, Francesco - and the other: - Galeotto, Galeotto - and began those of Concordia, hidden behind the columns, to shoot snapped with those of the Earth who little by little losing the field withdrew right to the fortress to wait for the day, having equipped the wall with people in the hope that in the new light would have their enmities in cages and in prison.The palace is then mentioned in a notary deed of 1 July 1611, in which Prince Alexander I Pico, eager to establish a cathedral in the city of Mirandola (which at the time still depended from the Parish Church of Quarantoli), undertook to pay the sum of 150 scudi per year to some members of the Society of Jesus, so that they would settle in the Collevati palace, that was to the Bergomi palace.

The progressive expansion of business led to the transfer of the bank to the current Art Nouveau palace, built in 1911-1912 in Giacomo Matteotti square.