Château Calon-Ségur

In the Middle Ages, Calon's noble house was one of the main strongholds of the Lords of Lesparre, and Bordeaux University archives show taxes were paid on Calon's wine in the 12th century. Ownership passed through the De Lur, De Marsan, De Vallier and De Gascq families before Jeanne de Gascq married Jacques de Ségur in 1670. Their son Alexandre de Ségur (1674-1716) married the heir to the Latour estate and purchased Lafite in 1715. In 1718 his son, Nicolas-Alexandre, Marquis de Ségur, added Mouton, putting every future Médoc First Growth except Margaux in the family's hands; the Marquis died in 1755. The Dumoulin family, which succeeded the Ségurs, relinquished the estate to Firmin de Lestapis in 1824. Calon Ségur was ranked a Third Growth in the 1855 Classification. In 1894, Georges Gasqueton, who also owned Château Capbern in Saint-Estèphe, acquired the growth with his uncle Charles Hanappier, and Georges, Edouard and then Philippe Gasqueton ran the estate through the 20th century. In 1995 Denise Gasqueton succeeded her late husband Philippe and, with her daughter Hélène de Baritault, carried out renovation work in the cellars and vineyard; she died in 2011. In 2012, Suravenir, the life-insurance subsidiary of the Crédit Mutuel Arkéa banking group, acquired Château Calon Ségur together with Château Capbern for an estimated €170 million, including stocks. Suravenir chairman Jean-Pierre Denis formed a partnership with Jean-François Moueix and his son Jean, owners of the Videlot group. Videlot, the minority shareholder, is a Bordeaux wine company owned by Jean-François Moueix, who also owns Pomerol's Pétrus.

• Ownership passed from the De Lur, De Marsan, De Vallier and De Gascq families to the Ségur family from 1670; Nicolas-Alexandre, Marquis de Ségur (d. 1755), added Mouton to a portfolio that already included Lafite and Latour
• The Gasqueton family owned the estate from 1894 (Georges Gasqueton and Charles Hanappier) until 2012, with Denise Gasqueton at the helm from 1995 until 2011
• Suravenir (Crédit Mutuel Arkéa) bought Calon Ségur and sister property Château Capbern in 2012 for an estimated €170 million, with a minority stake held by Videlot, the company of Jean-François Moueix and his son Jean

The vineyard covers 55 hectares (136 acres) as a single walled block, formed by three gravel outcrops that extend toward the Gironde estuary as far as a small chapel on the property. The soil is a thick layer of Quaternary gravel over a predominantly Tertiary clay subsoil, capped by a fine layer of lacustrine clay at the summit of the gravel deposits; altitude does not exceed 13 meters. Of the 55 hectares, 50 are planted and about 45 are in production. The current planting is 57% Cabernet Sauvignon, 34% Merlot, 7% Cabernet Franc and 2% Petit Verdot, trained by double Guyot at a density of 8,000 vines per hectare, with an average vine age of 20 years. A restructuring program begun in 2006 aims to raise Cabernet Sauvignon to 70% of the vineyard by 2032 and to increase planting density, with Cabernet replanted at some 10,000 vines per hectare from massal and clonal selections chosen to preserve genetic diversity. Estate manager Vincent Millet, who has run a comprehensive soil study since his arrival in 2006, calls Cabernet Sauvignon "the backbone of Calon Ségur"; the variety has made up three-quarters of the grand vin's blend since the 2008 vintage and can reach 90% in great vintages.

• 55-hectare walled vineyard (136 acres), the same size as at the time of the 1855 Classification; 50 hectares planted, about 45 in production
• Soils: Quaternary gravel over Tertiary clay subsoil with a lacustrine clay cap at the summit of the gravel; current planting 57% Cabernet Sauvignon, 34% Merlot, 7% Cabernet Franc, 2% Petit Verdot at 8,000 vines/ha
• Replanting program launched in 2006 targets 70% Cabernet Sauvignon by 2032, with new Cabernet at about 10,000 vines/ha; Cabernet Sauvignon has formed three-quarters of the grand vin blend since the 2008 vintage

A new gravity-flow vat room became operational on September 26, 2016, in time for that year's harvest; the renovated ageing cellar received its first barrels that November. The vat room holds 75 conical, temperature-controlled stainless steel tanks ranging from 5 to 120 hectoliters, sized to vinify individual plots and massal and intra-plot selections separately. Grapes are hand-picked, sorted on the vine, then mechanically and by hand, cooled to 12°C, and moved to the tanks without pumps for a pre-fermentation cold soak. Vatting runs 18 to 21 days with microbubbling, and co-inoculation with exogenous yeast and bacteria takes place in stainless steel at 25°C. The grand vin, Château Calon-Ségur, is aged 20 months in 100% new French oak barrels and fined with egg white. The second wine, Le Marquis de Calon Ségur, averages about 75% Merlot, follows separate plots from the outset, and is aged about 17 months in barrels of which a third are new. The third wine, formerly La Chapelle de Calon and then Le Saint-Estèphe de Calon Ségur, has been called Le C de Calon Ségur since the 2019 vintage; it comes mainly from young vines and limestone-rich parcels and is aged 16 months in three-year-old barrels. The renovated first-year barrel cellar holds 1,100 barrels, two and a half times the capacity of the previous cellar, and connects to the vat room through a 35-meter underground gallery.

• New gravity-flow vat room operational September 26, 2016: 75 conical stainless-steel tanks (5-120 hL); grapes handled without pumps, cold-soaked at 12°C, vatted 18-21 days
• Grand vin aged 20 months in 100% new French oak and fined with egg white; Le Marquis de Calon Ségur (second wine, ~75% Merlot) aged about 17 months with one-third new oak
• Third wine Le C de Calon Ségur (formerly La Chapelle de Calon, then Le Saint-Estèphe de Calon Ségur; renamed from the 2019 vintage) is aged 16 months in three-year-old barrels and drawn from young vines and limestone parcels

Éric Boissenot is consultant oenologist for the grand vin and the second and third wines. Vincent Millet, who turned to oenology while studying neuro-biology, joined as estate manager in 2006, is technical director, and has led a comprehensive soil study whose results show the terroir suited to Cabernet Sauvignon. Laurent Dufau became managing director of the estate in 2013; he had been managing director of négociant company Ballande & Meneret since 2005 and comes from the Médoc, with a small family estate in Listrac. Suravenir chairman Jean-Pierre Denis purchased the estate on behalf of the Crédit Mutuel Arkéa group; a collector as well as a wine lover, he has been interested in wine since the age of 35. About fifty people work across the estate's vineyard, cellar, administrative and hospitality teams.

• Éric Boissenot: consultant oenologist across the estate's wines
• Vincent Millet: estate manager since 2006 and technical director; led the soil study showing the terroir suited to Cabernet Sauvignon
• Laurent Dufau: managing director since 2013; previously managing director of négociant Ballande & Meneret from 2005

Jeff Leve of The Wine Cellar Insider describes Calon Ségur's style before the 2012 ownership change as "masculine, sturdy, tannic, structured, and traditional," a brawny Saint-Estèphe that often needed a decade or two to soften, and the wines made from the 2014 vintage under Laurent Dufau as "softer, lusher, riper, more forward, and refined." Leve scores the 2022 grand vin 96 points (70% Cabernet Sauvignon, 24% Merlot, 5% Cabernet Franc, 1% Petit Verdot) and the 2023 grand vin 96 points (72% Cabernet Sauvignon, 15% Merlot, 12% Cabernet Franc, 1% Petit Verdot), and calls the 2016 "absolutely stunning in every sense of the word." His list of best vintages runs 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2010, 2009, 2005, 2003, 2000, 1990, 1982, 1953, 1949, 1947, 1945, 1929 and 1928, and he recommends 10 to 15 years of aging in good vintages, with peak drinking between 15 and 50 years after the vintage.

• The Wine Cellar Insider: pre-2012 style "masculine, sturdy, tannic, structured, and traditional"; since the 2014 vintage under Laurent Dufau, "softer, lusher, riper, more forward, and refined"
• The Wine Cellar Insider scores: 2022 grand vin 96 points, 2023 grand vin 96 points; 2016 called "absolutely stunning in every sense of the word"
• The Wine Cellar Insider's recommended drinking window: 10-15 years minimum in good vintages, peak maturity between 15 and 50 years from the vintage

Primary sources (producer's own site): https://www.calon-segur.fr/en/, https://www.calon-segur.fr/en/chateau-calon-segur/, https://www.calon-segur.fr/en/le-marquis-de-calon-segur/, https://www.calon-segur.fr/en/saint-estephe-de-calon-segur/, https://www.calon-segur.fr/en/over-the-centuries/, https://www.calon-segur.fr/en/the-prince-of-the-vines/, https://www.calon-segur.fr/en/the-owners/, https://www.calon-segur.fr/en/the-heart/, https://www.calon-segur.fr/en/the-heritage/, https://www.calon-segur.fr/en/le-classement-de-1855/, https://www.calon-segur.fr/en/unique-terroir/, https://www.calon-segur.fr/en/a-reinvigorated-vineyard/, https://www.calon-segur.fr/en/the-magic-of-a-walled-vineyard/, https://www.calon-segur.fr/en/cabernet-sauvignon-reigns-supreme/, https://www.calon-segur.fr/en/the-people-of-the-estate/, https://www.calon-segur.fr/en/the-vat-room/, https://www.calon-segur.fr/en/the-ageing-cellars/, https://www.calon-segur.fr/en/the-project/, https://www.calon-segur.fr/en/contact-authentication/. Secondary sources: The Wine Cellar Insider (thewinecellarinsider.com), Decanter China, article by Jane Anson (14 August 2013, decanterchina.com). Last verified 2026-10-12. Where the producer's site and a secondary source disagree, the producer's site governs (see conflicts.json).