If I understand correctly: Grey-Poupon started in Dijon and the Reitzel brothers in Switzerland first imported it. Then they started to make it in Aigle (Vaud),

If I understand correctly: Grey-Poupon started in Dijon and the Reitzel brothers in Switzerland first imported it. Then they started to make it in Aigle (Vaud), Switzerland, and the French company kind of disappeared. Not sure, but Grey-Poupon is probably still made in Aigle.