The Järsberg Runestone is a stone of reddish granite which is believed to have been part of a stone circle monument. The upper part of the runestone is damaged and this was already the case when the stone was found.
In Värmland, there are only four runestones of which two are from the Viking Age (in Old Norse) and the two others are from the Age of Migrations (in the older Proto-Norse). The Järsberg Runestone is one of the two earliest and it dates from the 6th century. It is raised along a trail called Letstigen which was a pre-historic trail going from the Swedish central region in the Mälaren basin to the central region of Vestfold in Norway.
The stone was discovered in 1862 and it was then lying on its side, partially covered by soil. It appeared to have the proper shape for a gate stone, but when runes were discovered on it, it was instead raised anew where it was found.References:
Ängsö Castle was first named as "Engsev" in a royal charter by king Canute I of Sweden (r. 1167-1196), in which he stated that he had inherited the property after his father Eric IX of Sweden. Until 1272, it was owned by the Riseberga Abbey, and then taken over by Gregers Birgersson.
From 1475 until 1710, it was owned by the Sparre family. The current castle was built as a fortress by riksråd Bengt Fadersson Sparre in the 1480s. In 1522, Ängsö Castle was taken after a siege by king Gustav Vasa, since its owner, Fadersson's son Knut Bengtsson, sided with Christian II of Denmark. However, in 1538 it was given by the king to Bengtsson's daughter Hillevi Knutsdotter, who was married to Arvid Trolle.
In 1710, the castle was taken over by Carl Piper and Christina Piper. Ängsö Castle was owned by the Piper family from 1710 until 1971, and is now owned by the Westmanna foundation. The castle building itself was made into a museum in 1959 and was made a listed building in 1965. It is currently opened to visitors during the summers.
The castle is a cubical building in four stores made by stone and bricks. The lower parts is preserved from the middle ages. It was redecorated and expanded in the 1630s. The 4th storey as well as the roof is from the expansion of Carl Hårleman from 1740-41. It gained its current appearance in the 1740s.