Frías Castle · Frías
POI
The castle’s history dates back to the earliest fortresses of the 10th century. Perched on a crag overlooking the Tobalina Valley, it is one of the most spectacular rock-cut castles in Castile and holds great strategic value. It began to gain greater importance when it passed into the hands of King Alfonso VIII in 1201, giving it strategic value, as it would relieve Petralata Castle of its role in controlling the territory; that castle had been built by the Navarrese in 1040 to defend the most important passes between La Bureba and Old Castile.