
Castell de l'Albi, declared a national cultural interest property, originated as a Saracen defense stronghold in the Garrigues region alongside nearby castles Cervià and Vilosell, protecting the Siurana valiate against County of Barcelona expansion. First documented in 1166, the fortress expanded dramatically from the 16th century onward, transforming from medieval warfare architecture into a Renaissance palace blending Romanesque, Gothic, and Renaissance architectural vocabularies. Today, substantial ruins remain positioned atop the hilltop dominating the village near the Llena mountain range, representing the physical evolution from Islamic-era frontier defense to Christian renaissance palatial ambitions in medieval and early modern Catalonia's southern frontier regions.