Fuensaldaña Castle

Fuensaldaña Castle 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.Alonso Pérez de Vivero, who ordered its construction, was murdered for conspiring against Álvaro de Luna, a favourite of John II of Castile. The Catholic Monarchs of Spain confiscated the castle from the Vivero family due to their opposition in the War of Castilian Succession; it was returned in 1490.

Source: Wikipedia