Labraza is a hamlet and concejo in the municipality of Oyón-Oion, in Álava province, Basque Country, Spain.

[4] The fortress of Labraza, located on a prominent hill above the original village, played an important role in the border wars and was a strategic military stronghold.

The castle itself was an alcázar-palace surrounded by strong walls and four defensive towers, making it one of the most formidable fortresses of the region.

[5] Rodrigo Fernández de Medrano was appointed as the Alcaide of Labraza in 1294 by King Philip and Queen Joan I of France and Navarre.

[5] In 1422, King Charles III of Navarre offered the town a partial exemption from military taxes and duties, permitting the use of the funds for repairing the walls and fortress of Labraza.