 The inhabitants had Latin Rights until Lucius Julius Caesar's expansion of the Roman mainland to the Alps they received Roman citizenship by the "Lex" Julia in 90 BC.In 14 AD the Via Gemina was built by the legio XIII Gemina, which followed the Vipava Valley between the mouth of the river Vipava into the Soča at "Pons Sonti" (Gradisca d'Isonzo) and the later town Vipava.At the confluence with the Hubelj River, the "Castra ad Fluvium Frigidum" was built as integral part of the "Claustra Alpium Iuliarum", an ancient Roman defensive system of walls and towers stretching from the Gail Valley (now Carinthia, Austria) to the Učka mountain range (now Croatia).