The Parish Church of San Michele Arcangelo is located in Brozzo, a hamlet of Marcheno: the village is considered one of the oldest in Valle Trompia. The church was thought to date back to the time of the Lombards (569-774), a population very devoted to Archangel Michael, honoured with special cults and protector of the army. Altars were dedicated to him in the conquered territories. However, the style and structure of the church seem to refute the opinions mentioned above. In all probability, the church was rebuilt in a later period, always on the same site.
Don Omobono Piotti put forward the hypothesis that “the church of San Michele Arcangelo in Brozzo was directly subject to the bishop, perhaps due to the constitution of a fiefdom created by some Franco prince and then given as a gift to the Bishop’s palace.” What can be said with certainty is that either for the above reason or for its antiquity, the parish church of San Michele Arcangelo could compete with the earliest parsonages.