Vā̆trenus, i, m.,
a river of Gallia Cispadana falling into the Po , now the Santerno , Plin. 3, 16, 20, § 119; Mart. 3, 66, 2 (al. Vaterno).
VATRENUS(Santerno), a river of Gallia Cispadana, one of the southern tributaries of the Padus. It ha...
Dictionary of Greek and Roman Geography