Neuburg castle towers majestically over the Inn, having been built in 1050. It has had its current outer appearance since being rebuilt after its destruction in 1310. The Passau court painter gave it the character of a royal renaissance castle. Then, Georg Graf Ludwig von Sinsendorf had it turned into a baroque castle.
After been damaged by fire in 1810, the castle complex was used as a brewery and malthouse. Neuburg castle and the court taverns belonging to it were elaborately refurbished and extensive portions can be seen in its old splendour.
Besides the Rural District Museum (“Landkreisgalerie”) of the rural district of Passau and the district hall for conferences, today, Neuburg contains rooms for the Passau University, a hotel and the court tavern.
The circular trail leading to the viewpoint at the south dungeon shows an amazing view into the valley around the Inn.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.