Castles & palaces
Château de Largoët
Castle in Brittany, France
Wikipedia names Château de Largoët 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 Château de Largoët. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Elven
France · 2 km east
Commune in Morbihan, France
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Towns & cities
Saint-Nolff
France · 3 km south-west
Commune in Morbihan, France
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Towns & cities
Meucon
France · 11 km west
Commune in Morbihan, France
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Towns & cities
Vannes
France · 13 km south-west
Commune in Morbihan, France
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Landscapes & nature Îles Logoden
France · 19 km south-west
Islands in Morbihan, France
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Towns & cities Ploeren
France · 20 km west
Commune in Morbihan, France