The village of Karpniki, situated at the foot of the Sokole Mountains, is mentioned for the first time in the 14th century. The castle, whose history dates back to the 15th century, lies amidst the picturesque scenery of the mountainous landform and the surrounding hills and is connected with distinguished Silesian families.
The castle was redecorated in a Neogothic style in 1844 according to the plans of Friedrich August Stüler for Prince Wilhelm of Prussia who had purchased the estate in 1822. His brother, King Frederick William III, visited him several times and in 1831 bought nearby Erdmannsdorf Estate for himself, and in 1839 Wojanów (Schildau) Castle for his daughter Princess Louise of the Netherlands. Jelenia Góra Valley became a royal hideaway. The prince's daughter, Marie of Prussia, had her confirmation in the Lutheran Fischbach church in the spring of 1842, with King Frederick William IV and his wife Elisabeth Ludovika of Bavaria being present, as well as their nephew, the Bavarian Crown Prince and later King Maximilian II, Marie's fiancé, whom she married later that year. The following year their first son was born, who became the famous king Ludwig II.
Today Karpniki castle is a luxury hotel.
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.