Cabernet Sauvignon was once thought to be an ancient Roman grape, but it is not.

Food & Drink · Published 3 October 2026 Swipe more like this →

In short: For centuries, wine lovers believed this iconic grape was the legendary Biturica variety mentioned by Pliny the Elder. DNA testing in 1996 finally debunked this myth, revealing a much more recent origin. The truth is a surprising story of chance crossbreeding that changed the world of wine forever.

The mystery of Cabernet Sauvignon's origins persisted for generations, fueled by theories that it was a descendant of ancient Roman vines or a native of Spain's Rioja region. In the 18th century, it was frequently called Petite Vidure, a name some believed was a corruption of the Roman Biturica. However, in 1996, a team led by Carole Meredith at UC Davis used DNA typing to prove that Cabernet Sauvignon is actually a natural cross between Cabernet franc and Sauvignon blanc, likely occurring in the 17th century.

This hardy variety became a staple in Bordeaux's Médoc region due to its thick skins and late-budding nature, which protect it from frost and rot. Its profile is defined by high tannins and acidity, providing excellent aging potential. While its flavors shift from green pepper in cool climates to jammy blackcurrant in heat, its affinity for oak has become a global winemaking standard. The classic 225-liter barrique, popularized by Bordeaux blends, remains a benchmark for how the grape interacts with wood.

The grape's history is also marked by its role in creating new varieties. It has been crossed with Grenache to produce Marselan, and with the white grape Bronner to create Souvignier gris. Even its own mutations have been documented; in 1977, a 'bronze' mutant called Malian was discovered in Australia, which later produced a white-berried version named Shalistin. These discoveries highlight how a single, chance genetic event in a French vineyard centuries ago created a global powerhouse that continues to evolve through both nature and human intervention.

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