Fuensaldaña Castle (Spanish: Castillo de Fuensaldaña) is a castle in the Spanish village of Fuensaldaña, situated 6 kilometres from Valladolid, the largest city of Castile and León. Construction on the site began in the 13th century, but the castle did not take its current form until the mid-15th. Captive Moors were used to build it. Renovations started in 2011 ended in late 2012 when the castle was opened to the public as a tourist site, and venue for weddings, conferences and concerts. By 2015, it was safe for tourists to access the roof of the tower.