Mälsåker House, Baroque castle in Stallarholmen, Sweden.
Mälsåker House is a stone manor on the shore of Lake Mälaren with symmetrical wings and baroque ornamental details built in the 1670s. The structure displays the classical architectural features typical of that period, with carefully designed details throughout its facade and roof.
Gustaf Soop commissioned this residence in the 1660s with architect Nicodemus Tessin the Elder designing it according to Swedish nobility standards. The construction followed the architectural conventions that the Swedish upper classes preferred for their estates.
The name Mälsåker is recorded from the 15th century, when the land was a manor by Lake Mälaren. The estate passed from the Kagg family to the Soop family through marriage in the early 17th century. Today the castle is open in summer for concerts and guided tours.
The castle is in Ytterselö parish on Selaön, about 12 km north of Mariefred and 5.5 km northeast of Stallarholmen, with a park on Björkfjärden. Since 2006 an association has opened it to the public, and in summer it hosts concerts and guided viewings. Check opening times before travelling, as access depends on these events.
In 1853 owner Louise von Fersen lost the entire estate in a gambling incident and had to transfer it to Fredrik Åkerman. This sudden turn of events changed the property's history and shows how quickly wealth and ownership could shift.
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