Castillo de Gauzón

Spain, Spain

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Castillo de Gauzón is a ruined early medieval fortress on the Peñón de Raíces promontory in Castrillón municipality, Asturias, northern Spain, overlooking the Avilés estuary and commanding coastal access.

Dating to the mid-7th century per carbon-14 analysis—with late antique settlements from the 6th-7th centuries marking Asturias kingdom origins—it served as a royal stronghold where Alfonso III and Jimena encased the Victory Cross in gold and jewels in 908 AD.

Partially dismantled over centuries as locals repurposed its stones, excavations reveal complex foundations, a U-shaped monumental gate, metalworking areas, and later 10th-12th century condal expansions amid rebellions like Gonzalo Peláez's 1132 siege, now undergoing partial reconstruction as a key Asturian heritage site.