A Gascon place name, a founder’s surname and an eye on India.

Château Cos d’Estournel is a wine estate in Saint-Estèphe, in the Médoc north of Bordeaux, and the name of the red wine made there. In the official 1855 classification of the Médoc it was ranked among the fifteen second growths, English Wikipedia notes. The first word of the name is Gascon: “Cos”, with the s pronounced, means a “hill of pebbles”. Decanter’s producer profile describes the vineyard as a mound of gravel over limestone bedrock about 20 metres above marshy lowland, across the small Jalle de Breuil stream from Château Lafite Rothschild in Pauillac.

The second half of the name belongs to the founder, Louis-Gaspard d’Estournel, and the sources give different starting dates. The estate says he inherited Cos and neighbouring Pomys in 1791. Decanter’s profile, by James Lawther MW, says that from 1811 he vinified the grapes from the vines he had inherited at Cos separately from his other parcels and began to enlarge the vineyard. The estate says he grew it from 14 to 45 hectares and experimented with glass stoppers and new grape varieties.

D’Estournel looked far beyond Bordeaux. Decanter reports that his fascination with India led to sales of the wine on the subcontinent and to a mature wine labelled “Retour des Indes” — “returned from India” — from barrels that had made the round trip by ship to Bombay. The estate says British officers stationed in India were drinking his wine as early as 1838, and that his taste for the faraway earned him the nickname the “Maharajah of Saint-Estèphe”. His spending left him in debt, and in 1852 he sold Cos to the London bankers Martyns, Decanter reports; he did not live to see the 1855 classification.

Ownership then changed hands several times. Decanter lists the Basque Errazu family from 1869, the Charmolüe family, owners of Château Montrose, from 1889, and the Bordeaux négociant Fernand Ginestet from 1917. English Wikipedia gives a slightly different sequence for the 1880s and 1890s: the Hostein family bought the estate in 1889, and Louis-Victor Charmolue gained control in 1894 through his marriage into that family.

Pagoda roofs, a Zanzibar door and a cellar built as a theatre.

The building is the estate’s best-known image, and it is a winery rather than a residence. Decanter calls it an “extraordinary pagoda-like edifice, complete with gargoyles and carved door from a palace in Zanzibar”, a striking sight in the flat Médoc landscape, and links the pagoda-like cellars to d’Estournel’s fascination with India. French Wikipedia, citing Bruno Grelon’s Vins de France (1993), dates the pagodas on the chais to 1830. The estate describes the result as “a sumptuous palace dedicated to wine, topped with monumental pagodas”, and French Wikipedia says a restoration in 2006 returned the pagodas to their original appearance.

The modern cellars sit behind that façade. The Paris architecture firm Wilmotte & Associés says on its project page that, at the request of Michel Reybier and his director Jean-Guillaume Prats, it renovated and extended the cellars, rebuilding the vat and barrel rooms within the outlines of the old farm buildings that lean against what the firm calls the “oriental folly”. It credits Alain-Charles Perrot, Chief Architect of Historic Monuments, as a collaborator and the designer Jacques Garcia for the reception rooms, and gives the opening as September 2008.

Wilmotte describes two levels set on new foundations 17 metres deep, backlit glass walkways above truncated stainless-steel vats, and a structure that uses only wood, glass and steel; in the firm’s words, Jean-Michel Wilmotte set out to imagine “a cellar theatre”. The estate says the 2008 vat room works entirely by gravity, with four vats carried in glass elevators, so that the wine is moved without pumping from harvest reception to bottling, and that its truncated-cone, temperature-controlled stainless-steel vats were first installed in 2003.

The names of the wines carry the same motif. Since the 1994 vintage the estate’s second wine has been Les Pagodes de Cos, English Wikipedia notes, and the estate’s own range also lists Cos d’Estournel Blanc, first made in 2005, and Pagodes de Cos Blanc.

Design and documentation.

The seven brands in this group are all Bordeaux châteaux: Château Haut-Brion, Château Cheval Blanc, Château Ausone, Château Palmer, Château Lynch-Bages, Château Pichon Baron and Château Cos d’Estournel. Bordeaux estates in general sit at many different points in the trade, from properties still held by the families whose names they carry to estates that now belong to insurers, industrial groups or private investors, and a single estate’s wine can travel from its own cellar to merchants and restaurant lists around the world.

A Bordeaux château’s identity is usually carried less by a single bottle than by a label, a name and the place it promises, because the estate behind the name may have changed hands, been enlarged or been rebuilt many times since it began. That makes the questions behind each name worth asking plainly: who founded it, who owns it now, and where its wine is actually made and bottled.

Each guide separates what independent sources record from what the estate says about itself — its founding story, its owners over time, where its wine is made and how its labels and buildings have changed — and marks plainly what rests only on the estate’s own word.

Two sales in two years, and one owner since 2000.

The modern ownership story runs through the Ginestet family. Fernand Ginestet’s grandson Bruno Prats managed the estate from 1970, Decanter reports, until it was sold in 1998 to the Merlaut family, owners of the Taillan group, and Argentinian investors. Two years later, in 2000, it was bought by Michel Reybier, whom Decanter describes as a French food manufacturer. Reybier remains the owner; the estate says he has owned Cos since 2000.

Management has passed through a series of dated handovers. Jean-Guillaume Prats, Bruno Prats’s son, stayed on after the 2000 sale as chief executive; Decanter reported that he would leave as of January 2013, and later that Aymeric de Gironde, formerly of AXA Millésimes, replaced him as managing director in February 2013. When de Gironde left for Château Troplong Mondot in St-Émilion, Reybier said in a statement of 28 August 2017 that he would personally oversee the running of the estate, alongside technical director Dominique Arangoïts, Decanter’s Jane Anson reported. The estate still names Arangoïts as its technical director.

The wine is made at the estate in Saint-Estèphe. The company’s range also includes G d’Estournel and Goulée by Cos d’Estournel, which the estate says comes from the northernmost reaches of the Médoc. Reybier’s vineyards are grouped as Domaines Reybier, which the estate says took in Hétszőlő in Hungary in 2009 and estates in Provence in 2020 and 2021; Decanter also names him as owner of the La Réserve hotels in Geneva and Paris. The estate’s website is estournel.com.

For a design guide, Château Cos d’Estournel shows how an estate can make one building its identity, from the pagoda roofs raised by its founder to a 2008 cellar slipped in behind them and a second wine named after them. Compare Château Lafite Rothschild, its neighbour across the stream in Pauillac, and Château Pichon Baron, another Médoc second growth. For this guide we use claret, pagoda slate and pebble gravel with a serif, an unofficial interpretation; no product or logo is reproduced.

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