The Lingones were a Celtic tribe that originally lived in Gaul in the area of the headwaters of the Seine and Marne rivers. Some of the Lingones migrated across the Alps and settled near the mouth of the Po River in Cisalpine Gaul of northern Italy around 400 BCE. These Lingones were part of a wave of Celtic tribes that included the Boii and Senones (Polybius, Histories ii.17). The Lingones may have helped sack Rome in 390 BCE.