Castillo de Altamira

Castillo de Altamira stands on a hilltop above the small town of Monteagudo de las Vicarías in the province of Soria, sharing its elevated site with the town's old walled settlement. The castle sits within an area historically known as "La Raya" — the medieval frontier between the kingdoms of Aragón and Castile — a position that shaped its strategic importance for centuries.

What is the history behind the castle?

The current structure was commissioned by Juan Hurtado de Mendoza in the first half of the 15th century, built over an earlier fortress on the same site. For generations it played a key role in the border conflicts between Aragonese and Castilian forces fighting for control of the frontier. One notable episode dates to the civil war between Pedro I and Enrique de Trastámara, when the castle was handed over to the French commander Bertrand du Guesclin as a reward for his military support during the conflict. The building was officially declared a historic monument on April 22, 1949.

What will you see on site?

Castillo de Altamira has the layout of an irregular pentagon and blends Gothic and Renaissance features. Its polygonal walls are reinforced with angled towers, and the main gate is decorated with the heraldic shields of the Mendoza and Enríquez families, who once held the fortress. An octagonal keep rises above the whole complex, visible from a distance over the rooftops of the town. Inside, an elegant Renaissance courtyard with arched galleries organizes the living spaces, while the walls still preserve their crenellations and pointed archways, both refreshed during recent restoration work.

Since August 2021, the castle has housed the Castillo Museo de Monteagudo de las Vicarías, a museum hosting art exhibitions and cultural events — giving visitors a reason to step inside rather than just admire the walls from outside.

How do you get there and when should you visit?

Monteagudo de las Vicarías lies in the northeastern part of Soria province, close to the border with Aragón, fitting neatly with the castle's historical role as a frontier stronghold. Driving is the most practical way to arrive, since this is a small town with no train service and limited bus connections. The castle is municipal property, and admission is free but requires a prior request through the town hall (Ayuntamiento de Monteagudo de las Vicarías). It's worth calling ahead to arrange a convenient time for your visit.

Spring and early autumn are the best seasons to come, when temperatures on this high Soria borderland are milder than in peak summer and the surrounding countryside looks its most scenic.

Frequently asked questions

Is entry to the castle free? Yes, admission is free, but you need to request a visit in advance through the Monteagudo de las Vicarías town hall.

Who built Castillo de Altamira? The castle in its present form was built by Juan Hurtado de Mendoza in the first half of the 15th century, on top of an earlier fortification.

What can you see inside the castle? A Renaissance courtyard with galleries, the distinctive octagonal keep, and the exhibitions of the Castillo Museo, which has operated inside the castle since 2021.

Are there other sights worth visiting nearby? Monteagudo de las Vicarías itself still preserves sections of its town walls and the historic layout of a medieval border settlement, worth combining with a castle visit.