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Nyköpingshus Castle & The King’s Tower
Set on a green holm where the Nyköping River meets the harbour, Nyköpingshus features the whitewashed King’s Tower, medieval ramparts and courtyard.
8 November 2026 · Current
From the Nyköping Banquet of 1317 to Duke Charles’s Renaissance palace
Dating back to the late 12th century, Nyköpingshus was the scene of the Nyköping Banquet in December 1317 when King Birger imprisoned his brothers Dukes Erik and Valdemar.
In the late 16th century Duke Charles transformed the medieval fortress into a Renaissance palace. Following the town fire of 1665, the ramparts and iconic white King’s Tower remained standing.
Courtyard walks and the Christmas market on 5–6 December
The castle courtyard and rampart paths are open 24/7 year-round, and on 5–6 December 2026 the castle grounds host Nyköpingshus’s traditional Christmas market.
Read more at Sörmlands museum – Nyköpingshus.