Gallery LOUIS XIII | What is "Rémy Martin Louis XIII Rare Cask 42.6," the Next Level of Excitement? Gallery The 'terroir' that nurtured LOUIS XIII is the Grande Champagne region of Cognac. It is the birthplace of cognac and boasts the finest vineyards. prev next / close LOUIS XIII: Further Indulgence - What is Rare Cask 42.6? Gallery Back to Article