The castle of Frías, officially the castle of the Dukes of Frías and also called the castle of the Velasco, is located in the town of Frías in the north of the province of Burgos in Castilla y León (Spain).
It is located on the crag of La Muela, around which the urban fabric of the city of Frías develops. From its privileged situation it controls the valley of Tobalina and the passage of the Ebro river by means of the bridge, also fortified, that is placed to his feet. This is one of the main routes that have united, historically, the Castilian plateau with the Cantabrian cornice.
It is considered one of the most spectacular rock castles in Castilla. The current complex is made up of a mixture of buildings from the 12th, 13th, 15th and 16th centuries.
Built in well preserved masonry and with an interior free of auxiliary constructions, it is dedicated to tourist uses and to the realization of recreational and sports events. The castle next to the church of San Vicente crowns the urban framework that surrounds the hill of La Muela and is the reference point of the silhouette of the city.
It is protected by the Decree 22 of April of 1949 and by the Law 16/1985 on the Spanish Historical Heritage.
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