 The show's producers spent 10 months considering locations in Wales with the help of the Welsh Government’s Wales Screen service, which encourages film and television productions to use locations, crews, and facilities throughout Wales.The project was one of the first major productions to move into Pinewood Studios' new facility in Cardiff.The set for the series, in the form of a medieval village with a small castle, was constructed to the west of Cardiff at Dragon International Film Studios in Llanilid.