A group of Swiss wine producers have mounted a legal challenge to retain the right to call their non-sparkling white wine Champagne. The group of 39 winegrowers from the village of Champagne, near Lake Neuchatel in western Switzerland, have announced that they are to take their case to the European Court of Justice in Luxembourg. The growers lost the right to call their wine after the name of the village as the result of an agreement reached between the Swiss government and the EU.