Castles & palaces
Gniew Castle
Castle in Poland
Wikipedia names Gniew Castle as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Gniew Castle. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Gniew
Poland · under 1 km
City of Poland
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Castles & palaces
Kwidzyn Castle
Poland · 13 km south-east
Castle in Poland
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Towns & cities
Rywałd, Pomeranian Voivodeship
Poland · 22 km north-west
Village in Pomeranian, Poland
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Towns & cities
Starogard Gdański
Poland · 24 km north-west
City in Pomeranian Voivodeship in northwestern Poland
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Landscapes & nature Jamertal
Poland · 26 km north-west
Lake in Pomeranian Voivodeship, Poland
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Towns & cities
Malbork
Poland · 26 km north-east
City in northern Poland