The people who lived in those places were of the Hernici, migrated - as it seems - from the Aniene valley and descendant from the Marsi (Marsians) (or from the Sabines), at least according to the ethnical term deriving from the Marsian "herna" ("stone"), that is: "Those who live on the stony hills".
Več predmetov iz kosti in kremena in tudi dva človeška kočnika in sekalca pripadajo fosilnim ostankom Homo erectus in so jih našli v Fontana Ranuccio.