 Pagazzano is mentioned in the edict for the compartment of the State of Milan of 10 June 1757, among the municipalities of the Pieve di Gera d'Adda.Throughout the Middle Ages Pagazzano maintained its characteristics of a small agricultural village with limited strategic-military appeal, despite its central position along the axis of Crema-Bergamo.A fortification was built in the sixth century, according to some, or in the tenth, according to others, to defend against the raids of the Hungarians.