Castles & palaces
Warkworth Castle
Medieval castle in Warkworth, Northumberland, England, UK
Wikipedia names Warkworth Castle as where 3 films and series were filmed; each title’s page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Warkworth Castle. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Alnwick
England · 10 km north-west
Market town in north Northumberland, England
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Castles & palaces
Alnwick Castle
England · 10 km north-west
Castle and stately home in Alnwick, Northumberland, England, UK; seat of the Duke of Northumberland, England, UK
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Towns & cities
Hulne Priory
England · 13 km north-west
Carmelite friary in Denwick, Northumberland, England, UK
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Landmarks & buildings
Ellington Colliery
England · 15 km south
Former colliery in Northumberland, England
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Landmarks & buildings
Lynemouth Colliery
United Kingdom · 17 km south
Coal mine in England
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Castles & palaces
Cragside
England · 18 km west
Country house near Rothbury in Northumberland, England, UK
What Wikipedia says about Warkworth Castle
One sentence quoted word for word from Wikipedia, with the production it describes and a link to the article it comes from.
The Adventures of Robin Hood 1955–
“Three Northumberland sites were used: Alnwick Castle, Lindisfarne Castle, and Warkworth Castle.” Wikipedia