Castillo de Luna

The Castillo de Luna stands on a granite hill above the small Extremaduran town of Alburquerque, approximately 35 kilometres north of Badajoz and 20 kilometres from the Portuguese border. It is one of the best-preserved frontier fortresses in a region full of them — Extremadura, the 'extreme lands' between the Tagus and Guadiana rivers, was one of the principal contested zones of the medieval Reconquista, a landscape shaped by centuries of castle-building on both sides of a fluctuating border. The Castillo de Luna is unusual within this tradition in that it survives with two complete defensive perimeters — the inner castle and the outer walled enclosure containing the Villa Adentro — and has undergone minimal later modification or 19th-century 'restoration' of the kind that obscures the medieval fabric at many better-known Spanish sites.

The castle's history begins in the 1270s, when Alfonso X of Castile granted the Alburquerque territory and its fortifications as part of the reorganisation of frontier defence following the Battle of Las Navas de Tolosa (1212) and the progressive Castilian advance south. The name 'de Luna' attaches to the castle through the Álvaro de Luna, Constable of Castile and the most powerful man in Castile during the reign of Juan II in the early 15th century — a connection that gives the castle its popular name, though the Álvaro de Luna connection may postdate the castle's primary construction phases.

The Portuguese dimension of the castle's history is the most complex and the most interesting for visitors approaching it from a European historical perspective. Alburquerque, directly on the Castile-Portugal border, was contested territory throughout the 13th and 14th centuries. Afonso Sanches, an illegitimate son of the Portuguese King Dinis I (who reigned 1279–1325), held Alburquerque and its castle as part of a complex cross-border territorial arrangement that reflected the instability of the Portugal-Castile frontier in this period. Afonso Sanches is a significant figure in the Inês de Castro story that runs through the border regions: Inês de Castro, the Galician noblewoman who became the secret wife of Prince Pedro of Portugal, was connected to the de Castro family which itself was entangled in the Castile-Portugal border nobility network. When Pedro became King Pedro I of Portugal, he exhumed Inês's body, reputedly had her crowned posthumously, and forced the court to kiss her hand. The story — one of the most extraordinary episodes in medieval Iberian dynastic history — echoes through the frontier castles of the Alentejo and Extremadura, and Alburquerque is part of that landscape.

The castle's built fabric spans the 13th to 15th centuries. The inner enclosure contains the Torre del Homenaje (the keep), a rectangular tower with battlements and views across the Extremaduran plain toward Portugal. The cylindrical corner towers of the inner enceinte are intact. The outer wall system encloses the Villa Adentro — the surviving medieval walled town that developed in the shadow of the castle — with its Romanesque and Gothic remains, the street layout preserving the medieval urban form, and the Templo de Santa María del Mercado, a 15th-century church now used as a cultural space. This combination of military fortress and surviving walled town within the same defensive system is what makes Alburquerque unusual compared to most surviving Spanish castles, which have lost the medieval settlement around them to later development.

The GYG-listed guided tour (t1168078, 5.0★, 3 reviews, from $17, 3 hours) covers both the castle and the Villa Adentro on a walking circuit with a live guide from Ecoturismo Alburquerque. **The tour is conducted in Spanish only — there is no English-language option for this specific booking.** Spanish-speaking visitors get full interior access to the castle walls, towers, and the Villa Adentro street circuit, which is genuinely comprehensive for the price. English-speaking visitors should confirm language options with the provider before booking, or plan a self-guided visit to the exterior using the free castle approach path, which gives access to the outer walls and views without the guided circuit.