The Diplomat Season 4: All the Castles and Palaces Used as Filming Locations

The castles, palaces and villas used as filming locations for Season 4 of the Netflix series The Diplomat

The Diplomat Season 4: All the Castles and Palaces Used as Filming Locations

Burghley House, Belvoir, Lancaster House, St George’s Chapel at Windsor and the Medici villas: the guide to the historic homes serving as backdrops for Season 4 of The Diplomat on Netflix.

Editorial journal · Carte des Châteaux ·

Netflix · Lieux de tournage

Released on 15 October 2026, Season 4 of The Diplomat takes Kate Wyler from Windsor to a G7 summit in Tuscany. Behind these two settings lies a veritable heritage treasure hunt: the Windsor castle seen in the series is a composite of nine locations across England and New York State, while the G7 summit unfolds across several Medici villas. Here, based on information published by Netflix, are the castles and palaces to spot on screen—and the ones you can visit in person.

The route on the map

The English Filming Locations of The Diplomat Season 4

Windsor and the three stately homes that lent their façades and interiors to the series.

Markers follow the suggested visiting order. Select a castle to open its page.

Sources

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