John Duval was born with wine in his veins; for over 100 years his family supplied their grapes to some of the best winemakers in Australia from their Morphett Vale farm south of Adelaide: one of these was Penfolds, which would turn out to be quite prophetic! John, the fifth generation of his family, was the first to make the transition from grape-grower to winemaker, graduating from the renowned Roseworthy Agricultural College in 1973, and securing a role with Penfolds for the 1974 vintage. For the following 12 years he was mentored by Max Schubert, the creator of the legendary Grange (arguably Australia's most famous red wine), and esteemed Chief Winemaker Don Ditter, before himself taking over the post of Chief Winemaker in 1986, and so becoming only the third winemaker to be responsible for producing Grange. But after 29 years at Penfolds, at the helm of crafting not just the iconic Grange but, additionally their prestigious Bin 707, Bin 389, St. Henri, and also initiating Bin 138, Bin 407, and RWT, John felt it was time to branch out on his own and embark on his own project. In 2003 he did just that, sourcing gapes from long-time friends in the Barossa Valley who owned vineyards between 50 and 100 years old. John launched with just one wine, the Plexus Shiraz, a Grenache and Mourvedre Rhône style blend. A second wine followed in 2004 with the Entity Barossa Shiraz, then in 2005 the Eligo Reserve Shiraz. In 2010 came the first white Plexus blend of Marsanne, Roussanne and Viognier; in 2013 the Annexus Grenache, and in 2016 the Annexus Mataro. John wanted to build something for his family and his eldest son Tim has now joined him in the business ensuring the legacy continues. John does not seek to emulate the Penfolds wines, but to craft individual wines from premium grapes soured exclusively from exceptional old Barossa vineyards. These are wines of exquisite quality which showcase John's talent as one of the world's most talented winemakers.