Vignobles Michel Gonet has its roots in Champagne, where the family has been producing wine since 1802. With Sophie holding the reigns in Avize, brothers Charles-Henri and Frédéric Gonet set about extending the family's estate by acquiring properties in Bordeaux in the 1980s, first in Graves de Vayres and subsequently Pessac-Léognan. The brothers have worked masterfully over the past 30 years, increasing the area under vine whilst simultaneously reducing yields to maintain quality.

The family owns three châteaux. Château d’Eck, a formidable castle in Pessac-Léognan and once home to Pope Clement V (who’s namesake château is just up the road), produces brilliant red and white wines. Château Haut Bacalan, also in Pessac-Léognan, has Haut Brion as its neighbour, with wines to match. Château Lesparre, in the oft overlooked Graves de Vayres appellation, benefits from a favourable microclimate with very little rainfall, resulting in beautifully rich wines. The Gonet brothers also operate other plots of exceptional terroir: Château Saint Eugène in Martillac and, particularly notable, Château Haut-Brana on the Noés heights, which is surrounded on all sides by Château Pape Clément.