Founders' Estate. Brothers Jacob & Frederick founded Beringer in 1876, believing Napa could produce world-renowned wines. The longest continually operating winery in California. Estd. 1876. - Jacob Beringer/F. Beringer, Our Founders. In 1876, brothers Jacob and Frederick Beringer founded Beringer Vineyards in Napa Valley. Today we remain Napa's longest continually operating winery, and our Founders' Estate wines honor the dedication and vision of our founding brothers. This Cabernet Sauvignon is a full-bodied wine with deep berry, toasted oak and vanilla spice flavors. Enjoy responsibly. beringer.com. Alc. 13.8% by vol. Vinted & bottled by Beringer Vineyards, Sonoma, California.