Built in the 13th century, this castle was never conquered due to its imposing walls. It passed into the hands of the Dukes of Alburquerque and played an important role in the confrontations between Pedro I and the followers of Enrique de Trastámara. During the War of the Communities, the castle served as a refuge for the community members. It is one of the most impressive medieval fortifications in the province of Valladolid.