Castillo de Corullón is a 14th-century fortified estate in El Bierzo region, León, constructed initially as a recreational mansion by the Rodríguez de Valcarce family over earlier Roman and medieval foundations. Its distinctive architecture comprises a fortified enclosure of approximately 41 by 23 meters with a prominent reconstructed tower standing over 20 meters tall, built by Pedro Álvarez Osorio, first Count of Lemos. The fortress is historically significant for its involvement in 15th-century Irmandiña revolts, with archaeological evidence including projectiles from the assault. Currently owned by descendants of the Marquises of Villafranca, it remains an important example of regional medieval fortification.
