El oppidum romano de Lucina Historical milestone · Herrera del Duque, Cijara, Badajoz Image of Herrera del Duque, not of the place itself. The origin of Herrera del Duque goes back to the Roman oppidum of Lucina; Chalcolithic and Iron Age remains have also been found in its term, including the caves of la Panda. Photo: Haitone (CC BY-SA 3.0) What to see and do in Herrera del Duque