Mercier Champagne...what can be said about this champagne legend which will surprise? Well, those who are newer to bubbly may be intrigued to learn that Mercier's past is rich with a history of involvement with other even bigger champagne brands. Founded in 1858 and producing both non-vintage and vintage varieties, in 1930, Mercier actually possessed control of the name Dom Pérignon and then sold the name to Moët et Chandon.