Hagenskov Castle lies in the countryside a few kilometres to the east of Assens. It is a grade A listed building protected by law from substantial alteration. It was built in 1775 in a classical style by the design of architect G. E. Rosenborg. There had been a castle on this site for many centuries and remains of the medieval castle’s dungeons. In the 13th century a dispute with the King led to an archbishop being imprisoned here. The castle is visible from a public road, which leads right through the castle, but otherwise there is no public access to the castle.
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Frösöstenen is the northern-most raised runestone in the world and Jämtland's only runestone. It originally stood at the tip of ferry terminal on the sound between the island of Frösön and Östersund. The stone dates to between 1030 and 1050. It has now been relocated to the lawn in front of the local county seat due to the construction of a new bridge, between 1969 and 1971, on the original site.
Frösö runestone inscription means: Austmaðr, Guðfastr's son, had this stone raised and this bridge built and Christianized Jämtland. Ásbjörn built the bridge. Trjónn and Steinn carved these runes.