The origins of the Moroni family date back to the ancient Venetian Celsi family, who later moved to Milan and the Bergamo area.
The Moroni are probably from Albino who moved to Bergamo but it could also have been the other way around. The first identified personage of the family is Joannis Moroni in 1156 in Albino, Ioannes Moroni in 1204 in Borgo Palazzo in Bergamo, and a Ioannes Moroni in 1216 again in Albino.
In 1221, Ioannes Moronus appears as treasurer (caneparius) of Bergamo. In 1233, a Moronis is listed as playing the same role, it being difficult to understand if this refers to the same person. It was precisely in the 13th century that characters with the same surname appear in deeds: Guillelmus Domini Ioannis de Moronibus in 1246, a judge Albertus (Castoldi) in 1263 and a certain Obertus Moronum in 1287. Characters with this surname are scattered in many localities in the Bergamo area. In 1288, a Bergamus Filius Quondam Guillelmi Moronum de Sorisole was present in Bergamo and later Ioannes Moronum de Sedrina. Also mentioned are Moroni present in Ponte San Pietro and Sombreno. Amongst the personalities worth mentioning are Andrea and Bortolasio as well as the descendants of the latter who carried out architectural and engineering works.
In the Alba area, there are many family members mentioned as early as the 14th century who worked as stone masons. In 1233, a Morone with the profession of Canepario Cittadino (Administrator) is mentioned, in 1238 Alberto with the profession of Giudice (Judge) then in 1307, an Obero Savio della Pace and a Notary in 1408 named Fachino. Many of the family became important figures in the 15th century due to their engineering skills.
In the territory of Albino, the Moroni family in the 17th century began cultivating mulberry trees for breeding silkworms, which were indispensable for the textile market in the area, thus achieving considerable wealth. The family, who had initially moved to Via Torre del Gombito in Bergamo, built Palazzo Moroni with Francesco Moroni.