High Quality Content by WIKIPEDIA articles Bernard de Nonancourt (c. 1920 - October 29, 2010) was a French businessman, member of the French Resistance and president of the Laurent-Perrier champagne house for more than fifty years. Under de Nonancourt' s leadership, Laurent-Perrier expanded to become the world's third largest seller of champagne by 2005. He was known as "Le Grand Bernard" within the industry.