Perched high atop a rugged hill 25km west of Coimbra, the glowering walls of the Castelo do Montemor-o-Velho dominate the surrounding marshland far out to the horizon. Whether seen from a distance or from atop the castle walls themselves, it’s easy to imagine this site as an early bastion in the Reconquista. Ferdinand I of Castile and León recaptured Montemor-o-Velho from the Moors in 1064, and within less than a century his great-grandson Afonso Henrique claimed it as part of his new Kingdom of Portugal. Over the intervening centuries the castle was rebuilt and expanded several times, with most of the current structure dating from the 14th century.