Further east, Oscan speakers—the Paeligni, Vestini, and Marrucini—held sway; to the southeast, along the Adriatic coast, the Oscan-speaking Frentani dominated.    From Wordnik.com.  [b. The Peoples of Italy] Reference

During the late 5th and early 4th centuries, Oscan-speaking peoples moved into Campania, Lucania, and Bruttium, where they came to be known as Campani, Lucani, and Bruttii, respectively.    From Wordnik.com.  [b. The Peoples of Italy] Reference