Fronsac's fine Château Dalem perches high on a hill, surrounded by its 14 hectares of sloping vineyards. It's an historic estate, with records dating back to 1610, that stayed in the same family until 1955. Michel Rullier then took it over and today it's run with great success by his descendant, Brigitte Rullier-Loussert. Its vineyards are nearly all planted to Merlot, with a small amount of Cabernet Franc, and tended with meticulous care.

As you can see from critics' scores (92 points from James Suckling and 94 from Vertedevin), it is an admired claret and one that ages very well too. Matured in French oak (50% new), it has structure and length, but above all an appealing fruity depth. Perfect with roast meat or wild mushroom risotto.

Château de Birot is an elegant, 17th-century property with vineyards perched on a high plateau looking down on the Garonne river and across to famous Sauternes. Until a few years ago, it belonged to the renowned Castéja family. They sold it and the new owners have been working hard, updating the estate. In the cellar, they discovered a forgotten batch of château wine from 2007.

Despite its 17 years’ age, it’s still tasting delicious, complex and long. It’s Merlot dominated from estate vineyards in the superior Premières Côtes, with a little of both Cabernets. After 17 years of maturing in the cellars, it has developed some sediment in bottle. A good sign. Stand the bottle upright for a few hours and carefully decant just before serving.

Founded 200 years ago, Château Pédesclaux is a magnificent estate, both in terms of wine and architecture. It combines the beauty of the 19th century with the modernity and technological advances of the 21st.

The additional work was undertaken by architect Jean-Michel Wilmotte, whose aim was to place “production at the heart of the estate within a high-performance building that is entirely fit for purpose and makes a harmonious whole with both the château and its surroundings”. It's quite something to behold.

Since the Lorenzetti family took ownership they've converted to organic. Their top wine is a rich, Cabernet-based claret, supported by Merlot, and finely expresses its gravel terroir. Still a young wine – best to cellar or open early.