Castle Nalda rises from a hilltop in La Rioja, its origins traceable to at least 1299, though likely earlier given its position defending the Iregua valley against Muslim forces. In the 14th century, the fortress became the power centre of the Lordship of Cameros under the Ramírez de Arellano family, ruling territories from northern Soria to the Ebro valley. Once the strategic landscape shifted and lordships were abolished in the early 19th century, the structure fell into disuse—its materials plundered and rubble accumulating over the site. Archaeological excavations begun in 2012 revealed the original walls, defensive towers, and a distinctive four-metre-high water tower, restoring this medieval stronghold to historical prominence.
