Rzeszów Castle - one of the main landmarks of Rzeszów rebuilt between 1902-1906, located on the former grounds of the castle of the House of Lubomirski. Currently the castle houses the seat of the provincial court, the building housed a prison up until 1981.
An early fortress stood on the castle's grounds since the sixteenth century. At the end of the same century, Mikołaj Spytek Ligęza built a Motte-and-bailey castle close by to the current castle's location. In 1620 he expanded the castle into a 'Palazzo in fortezza'. Since 1637 the castle was put under the ownership of the House of Lubomirski. Most of the building works were done by Tylman van Gameren and Karol Henryk Wiedemann. In 1820 the complex was brought under Austrian authorities; which adapted the building for a courthouse and a prison. The building was deconstructed at the beginning of the twentieth century due to its poor state. The only parts left from the original complex are the gatehouse and bastion fortifications.References:
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.