Pszczyna Castle is a classical-style palace. Constructed as a castle in 13th century or earlier, in a Gothic architectural style, it was rebuilt in a Renaissance style in the 17th century. During the course of the 18th and 19th centuries, the exterior of the castle was partially changed into a Baroque-Classical style. The Classicist modernization transformed the complex into what is usually described a palace.
In its history the castle was a residence of Silesian and Polish Piast nobles, then the German von Promnitz noble clan (mid-16th to mid-18th centuries) and later the German von Pless family. The castle became owned by the state after the death of the last Prince of Pless, Hans Heinrich XV in 1936.
In 2009 it was voted as one of the 'Seven Architectural Wonders of the Silesian Voivodeship' by the Silesian authorities and is often described as one of the most beautiful castle residences in Poland.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.