There has been a castle or stronghold in Johannesberg since the 11th century. The hill surrounded by water has been easy to defend. During the 12th century a chief named Gutti lived here and the whole area became Gutti´s area, later on Gottröra, which is the name of the place today. Gutti divided the area into two parts, the south and the north. The south part – presently Johannesberg – was called Djursby.
The owner of Djursby during the later part of the 17th century was Johan Leijonhufvud. He gave the estate to a close relative, Adam Lewenhaupt, who named it Johannesberg after Johan Leijonhufvud. Lewenhaupt died in Russian captivity and was never to see Johannesberg again. After Lewenhaupt the estate was owned by different nobility families – Banér, Gyllenstierna, Horn af Åminne and Lagergren. At the end of the 19th century Johannesberg was taken over by a Mr Grönwall, a wholesale dealer. During his time the main building unfortunately burnt down. The next owner, Mr Conti, built the present mail building around the turn of the century.
The estate was bought in 1930’s by Bergengren, who at the end of the decade owned many estates in Sweden, England and France. Bergengren is still the owner of the agricultural part of Johannesberg.
During World War II Bergengren rented out the main building and several crofters cottages to the Swedish government and under the management of the manager for the Criminal Technical Institution, Harry Söderman, Norwegian refugees were here officially beeing educated to police men. In fact they were educated to join the resistance movement. At the maximum there were about 1500 Norwegians here for education. Many of them have through comrade clubs kept in touch with each other after their return to Norway. They have collected money and this resulted in a monument beeing raised in the castle park at Johannesberg in June 1990.
In 1987 Johannesberg was bought by a private company. It was restored, the two wings were built ant the estate was ready to take into use in the springtime 1989. The golf course with 27 holes was set up and opened in 1991. A club house with swimming pool was ready at the same time. The castle is owned and operated since 1995 by the family Manfred and Mariette Kuhl.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.