Monzón de Campos
Monzón de Campos lies near the Carrión beneath a castle that dominates the surrounding plain. Once the centre of an early medieval county, it later became a noble lordship. In 1351 Peter I granted the town, fortress and dependent lands to Sancho Sánchez de Rojas, together with their rents and jurisdiction. During the Revolt of the Comuneros the castle was occupied by the forces of Antonio de Acuña, Bishop of Zamora, as the uprising spread through Tierra de Campos.