The Edwardian castles of north Wales were built by a Savoyard master mason, but also by many other artisans from Savoy.

Having moved to Switzerland, and qualified as a historian (Masters, Northumbria University, 2016), the author came across the story of the Savoyards in England and engaged in this important history research project. He founded an association to develop Anglo Swiss relations regarding this story, in liaison with Cadw, Château de Grandson, Yverdon and others.