The original French white champagne is made from a grape variety called:
sauvignon 
riesling
bianca
chardonnay
Only chardonnay and only in Champagne, as required by the AOC (Appellation d'origine contrôlée) rules.
reach: rather globalbeveragesdrinkswines
Answers by country
sauvignon 
riesling
bianca
chardonnay
answers
Australia21
Republic of Ireland14
Austria49
Switzerland43
Italy12
Germany342
the United Kingdom67
Romania19
Poland3232
India39
the United States102
Canada10