The Castillo de Portillo is a well-preserved medieval castle in Portillo; the earliest elements of its present construction date to the fifteenth century. The site has been fortified since the tenth century, when it is documented in connection with Moorish forays into the region, under Abd al-Rahman III. In the fourteenth century, and until the early fifteenth, it was in the possession of the family of Sandoval; in 1392 it was confiscated from Diego Gómez de Sandoval in the name of King Juan II of Castile, who granted it in 1438 to Ruy Díaz de Mendoza.
From 1448 to 1452, Portillo was occasionally held by Juan's favourite, Don Álvaro de Luna, although the fortress remained in royal hands. Don Álvaro, however, fell from favor, and was detained at Burgos, sent to Portillo until two months later he was tried at Valladolid, and subsequently beheaded in the main Plaza on 2 June 1453. In 1464 Enrique IV of Castile conferred it upon Alfonso, held in trust by Juan Pacheco, the prince's tutor, until his death (1474), though it had been ceded to Rodrigo Alfonso de Pimentel, whose heirs held it until the nineteenth century, when it passed to the family of Osuna.
As the history above indicates, Portilla is better known for the list of distinguished prisoners it has housed, than for being the site of battles or other events. Juan II of Castille was briefly imprisoned at Portillo in 1444 by the Conde de Castro, escaping by bribing one of his guardians. The chronicles also touch upon the fact that Don Enrique, brother of the admiral Don Fabrique y de Suero de Quiñones (who fought at Paso Honroso) was jailed here for conspiring against the crown.References:
Hluboká Castle (Schloss Frauenberg) is considered one of the most beautiful castles in the Czech Republic. In the second half of the 13th century, a Gothic castle was built at the site. During its history, the castle was rebuilt several times. It was first expanded during the Renaissance period, then rebuilt into a Baroque castle at the order of Adam Franz von Schwarzenberg in the beginning of the 18th century. It reached its current appearance during the 19th century, when Johann Adolf II von Schwarzenberg ordered the reconstruction of the castle in the romantic style of England's Windsor Castle.
The Schwarzenbergs lived in Hluboká until the end of 1939, when the last owner (Adolph Schwarzenberg) emigrated overseas to escape from the Nazis. The Schwarzenbergs lost all of their Czech property through a special legislative Act, the Lex Schwarzenberg, in 1947.
The original royal castle of Přemysl Otakar II from the second half of the 13th century was rebuilt at the end of the 16th century by the Lords of Hradec. It received its present appearance under Count Jan Adam of Schwarzenberg. According to the English Windsor example, architects Franz Beer and F. Deworetzky built a Romantic Neo-Gothic chateau, surrounded by a 1.9 square kilometres English park here in the years 1841 to 1871. In 1940, the castle was seized from the last owner, Adolph Schwarzenberg by the Gestapo and confiscated by the government of Czechoslovakia after the end of World War II. The castle is open to public. There is a winter garden and riding-hall where the Southern Bohemian gallery exhibitions have been housed since 1956.