Michele, St. Giorgio and Puginate. The name Bregnano is mentioned for the first time in some documents as Berugnano. The Gauls were the first to settle in this area, followed by the Romans between the 1st century b.C. and the 1st a.D. Later, in 586, the Longobards invaded Bregnano and occupied it for 2 centuries till Charlemagne's invasion of Northern Italy. It then became fief of the Archbishops from Milan. Around the 9th century, Alberto Carcano distinguished himself in several fratricidal wars. He was the founder of a noble family, whose members were very successful in different fields. After the battles between Como and Milan, Bregnano fell under the rule of the Visconti. In this period there were many churches and some of them risked to be abolished until, in 1860, an episcopal decree confirmed the parish church of St. Giorgio and the establishment of the parish church of SS. Ippolito and Cassiano and of the church of St. Michele.