Insubria is a historical-geographical region which corresponds to the area inhabited in the past by the Insubres, a Celtic people which dwelt in the 4th-5th century BC in the area of pre-Alpine lakes and Milan.
Insubria is a historical-geographical region which corresponds to the area inhabited in Classical antiquity by the Insubres. Polybius claims the Insubres founded the city of Milan around 600 BC. They were a Celtic people which dwelt in the 4th-5th century BC in the area of pre-Alpine lakes and Milan.