Louis M. Martini

Founded in 1933 by Genoa-born vintner Louis M. Martini, this St. Helena estate was one of the first wineries to open in Napa Valley at the end of Prohibition and has operated continuously ever since. Martini was an early champion of dry table wines, varietal and vintage labeling, and hillside and mountain vineyards—most notably the Monte Rosso Vineyard in the Mayacamas, purchased in 1938 and now revered for its iron-rich red volcanic soils. The winery remained under family leadership for three generations before be…