The central part of the Po valley is only a fraction of the Italian lands conquered by the Lombards when they crosed the Alps from eastern Europe in the early Middle Ages.
The areas on the east and west sides of the Po Valley were not conquered.
mnli hypothesis: The areas on the east and west sides of the Po Valley were not conquered. premise: The central part of the Po valley is only a fraction of the Italian lands conquered by the Lombards when they crosed the Alps from eastern Europe in the early Middle Ages.