About 1200 the original fortress Kasteln was built in the middle Schenkenberger valley, a few kilometers away from Schenkenberg Castle. In 1238 the castle is first mentioned in a deed of gift to the residents of the castle who were vassals of the Kyburgs. In 1262 Ruchenstein castle was built on the cliff directly behind the fort for the Knight of Ruchenstein. After the extinction of the Kyburg line in 1264, the castle came under the power of the House of Habsburg. Then in 1301 the Ruchenstein line died out, ten years after they had been given the fort as a gift by the Habsburgs. Both castles were acquired by the lords of Mülinen from Brugg. From here, they ruled over a small area on the southern edge of the Jura.
The castle belonged to the family of Mülinen until 1631 when Johann Ludwig von Erlach bought both castles. The Bernese patrician and general ordered the reconstruction of the castle in 1642 to a representative of manor house. Ruchenstein castle was demolished a year later and served as a building material supplier. Because the builder had no previous expertise, and the client was mostly absent, the conversion proved to be expensive and lasted until 1650. After about a century in the possession of the family of Erlach, in 1732 Bern bought the little bailiwick for 90,000 Taler.
After the fall of the Ancien Régime and the Act of Mediation in 1803, the bailiwick came into possession of the newly formed canton of Aargau. The castle was sold in 1836 to a private citizen. In 1855 the brothers Frederick and Louis Carnival of Aarau acquired the property and opened a 'rescue institution for orphans and neglected pupils' of the Reformed denomination. On 24 August 1907 one of the pupils set the castle and adjacent barn on fire. Both buildings suffered heavy damage and had to be rebuilt. It wasn't until 1909 that the Institute started operations in the manor again.
The Institute received the status of a foundation in 1923 and was converted in 1955 in a boarding school for students with behavioral problems. In 1969 next to the castle they built a second school building, swimming pool and a staff house. The entire castle was extensively renovated in 2009 inside and out and adapted to the current needs of the social education.
Kasteln is the only uniform baroque palace built in the Aargau. The current design is mainly due to the modifications under Johann Ludwig von Erlach. At the core is a four-story medieval castle with two-story wings, from 1642–50, to the east and west. The wings were built partly from material from the demolished castle Ruchenstein. The unusually rich interior of the castle in 1907 was lost in the fire.
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The Moszna Castle is one of the best known monuments in the western part of Upper Silesia. The history of this building begins in the 17th century, although much older cellars were found in the gardens during excavations carried out at the beginning of the 20th century. Some of the investigators, including H. Barthel, claimed that those cellars could have been remnants of a presumed Templar castle, but their theory has never been proved. After World War II, further excavations discovered a medieval palisade.
The central part of the castle is an old baroque palace which was partially destroyed by fire on the night of April 2, 1896 and was reconstructed in the same year in its original form by Franz Hubert von Tiele-Winckler. The reconstruction works involved an extension of the residence. The eastern Neogothic-styled wing of the building was built by 1900, along with an adjacent orangery. In 1912-1914, the western wing was built in the Neo-Renaissance style. The architectural form of the castle contains a wide variety of styles, thus it can be generally defined as eclectic.
The height of the building, as well as its numerous turrets and spires, give the impression of verticalism. The whole castle has exactly ninety-nine turrets. Inside, it contains 365 rooms. The castle was twice visited by the German Emperor Wilhelm II. His participation in hunting during his stay at the castle was documented in a hand-written chronicle in 1911 as well as in the following year. The castle in Moszna was the residence of a Silesian family Tiele-Winckler who were industrial magnates, from 1866 until the spring of 1945 when they were forced to move to Germany and the castle was occupied by the Red Army. The period of the Soviet control caused significant damage to the castle's internal fittings in comparison to the minor damage caused by WWII.
After World War II the castle did not have a permanent owner and was the home of various institutions until 1972 when it became a convalescent home. Later it became a Public Health Care Centre for Therapies of Neuroses. Nowadays it can be visited by tourists since the health institution has moved to another building in the neighbourhood. The castle also has a chapel which is used as a concert hall. Since 1998 the castle housed a gallery in which works of various artists are presented at regular exhibitions.
Apart from the castle itself, the entire complex includes a park which has no precise boundaries and includes nearby fields, meadows and a forest. Only the main axis of the park can be characterised as geometrical. Starting from the gate, it leads along the oak and then horse-chestnut avenues, towards the castle. Further on, the park passes into an avenue of lime trees with symmetrical canals running along both sides of the path, lined with a few varieties of rhododendrons. The axis of the park terminates at the base of a former monument of Hubert von Tiele-Winckler. On the eastern side of the avenue there is a pond with an islet referred to by the owners as Easter Island. The islet is planted with needle-leaved shrubs and can be reached by a Chinese-styled bridge. The garden, as part of the whole park complex was restored slightly earlier than the castle itself. Preserved documents of 1868 state that the improvement in the garden's aesthetic quality was undertaken by Hubert von Tiele-Winckler.