Founded as a joint venture between Baron Philippe de Rothschild of Château Mouton Rothschild and Robert Mondavi, Opus One was originally known as NapaMedoc for its first three vintages before rebranding in 1982. Their goal was to create a First Growth-level, Bordeaux-style wine in Napa Valley. The Grand Vin is a blend of 95% Cabernet Sauvignon and 5% Merlot, aged for 18 months in new French oak, followed by 18 months of bottle maturation. The 2018 vintage offers intense aromas of blackberry, cassis, and black cherry, with elegant notes of violets, white pepper, and rose petals, creating a seductive bouquet.