El señorío de los Sotomayor en Herrera del Duque Historical milestone · Herrera del Duque, Cijara, Badajoz Image of Herrera del Duque, not of the place itself. From 1444, Herrera del Duque came under the lordship of the Sotomayor family, linked to the county of Belalcázar; in 1832 it became a constitutional municipality, and in 1834 it became the head of a judicial district. desde 1444 Photo: Diego Casillas (CC BY-SA 4.0) What to see and do in Herrera del Duque