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Château Cos Labory

A Saint-Estèphe estate classified as a Fifth Growth in the 1855 Bordeaux classification, producing Bordeaux-style red wine.

Last updated August 22, 2026

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Overview

Château Cos Labory is a wine estate in the Saint-Estèphe appellation of Bordeaux, France. Its wines belong to the Médoc tradition of structured red Bordeaux blends and are associated with the gravelly Cos hill, a geographical feature reflected in the estate's name. The second part of the name commemorates François Labory, identified as the property's first owner. The estate's historical importance is established by its inclusion among the eighteen Cinquièmes Crus, or Fifth Growths, in the Bordeaux Wine Official Classification of 1855. This classification, created for the Exposition Universelle in Paris, remains a central reference point for the hierarchy and commercial identity of Médoc and Graves wines. As a classified Saint-Estèphe property, Château Cos Labory occupies a recognized position within Bordeaux's traditional château system, even though its wines are generally presented as more approachable and fruit-driven than some of the appellation's most austere examples. Ownership of the property changed several times during the nineteenth and twentieth centuries. François Labory held the estate until 1845, after which it was acquired by Mr. d'Estournel. In 1852, d'Estournel sold it to Charles Martyns, an English banker. During the 1930s, the estate passed into the ownership of George Weber. Weber later bequeathed it to his daughter and her husband, François Audoy, in 1959. The Audoy family subsequently expanded its holdings in 1971 by acquiring the neighbouring Château Andron Blanquet. Their sons worked with the family on both properties, and the elder son, Bernard, later assumed responsibility for managing the estates. The principal wine of the estate is Château Cos Labory, a red Bordeaux wine made in the Saint-Estèphe appellation. The wine is described as fruit-forward and intended to be consumed comparatively young for a classified Bordeaux wine. This style gives the estate a positioning that combines the prestige of the 1855 classification with an emphasis on accessible fruit character rather than relying solely on long-term cellaring. Publicly available reference material does not provide a complete account of the estate's current ownership, management structure, vineyard area, production volume, grape proportions, or distribution network. Accordingly, those details are left unspecified here.

History

Château Cos Labory is a historic wine estate in the Saint-Estèphe appellation of the Médoc, in Bordeaux, France. The property takes its name from the Cos hill on which it is located and from François Labory, who was its first identified owner. The estate's location links it to the established Saint-Estèphe château landscape, where vineyards and wine properties are commonly named after their sites, owners, or both. François Labory owned the estate until 1845. It was then acquired by Mr. d'Estournel, whose ownership preceded another transfer in 1852 to Charles Martyns, an English banker. These changes took place during the period when Bordeaux estates were becoming increasingly associated with formal classifications, export markets, and the expanding international trade in Médoc wines. Château Cos Labory was included in the Bordeaux Wine Official Classification of 1855 as one of eighteen Cinquièmes Crus, or Fifth Growths. The classification was prepared for the Paris Exposition and ranked leading Bordeaux wines according to contemporary reputation and market value. Although the classification is not a complete measure of present-day wine quality, it has continued to shape the identity, pricing context, and historical prestige of the estates included in it. Château Cos Labory's Fifth Growth status therefore remains a defining feature of its brand and market position. By the 1930s, the property had come under the ownership of George Weber. Weber later left the estate to his daughter and her husband, François Audoy, in 1959. The transfer brought Château Cos Labory into the Audoy family's management. In 1971, the family acquired the neighbouring Château Andron Blanquet, creating a connection between the two Saint-Estèphe properties. The Audoy couple's sons worked with them on both estates for several years, after which the elder son, Bernard, took over the running of the properties. The estate's best-known wine is Château Cos Labory, a red Bordeaux produced under the Saint-Estèphe appellation. Reference material characterizes the wine as fruit-forward and relatively suitable for drinking young when compared with the more traditionally long-lived classified Bordeaux wines. This profile gives the château a dual identity: it benefits from the formal prestige of the 1855 classification while presenting a style that can be enjoyed without the same degree of extended aging normally associated with the most powerful Médoc wines. The available historical record confirms the property's succession of owners, its classification, and its relationship with Château Andron Blanquet. It does not establish detailed information about the current owner, present-day director, vineyard size, annual production, exact blend, export partners, or recent commercial strategy. Those matters are therefore not stated as facts in this dossier.

  • 1971

    Acquisition of Château Andron Blanquet

    [1]

    The Audoy family acquired the neighbouring Château Andron Blanquet, linking the management of the two Saint-Estèphe properties.

  • 1959

    Transfer to the Audoy family

    [1]

    George Weber bequeathed the estate to his daughter and her husband, François Audoy.

  • 1930

    Ownership by George Weber

    [1]

    By the 1930s, the property was owned by George Weber.

  • 1855

    Classified as a Fifth Growth

    [1]

    Château Cos Labory was included among the eighteen Cinquièmes Crus in the Bordeaux Wine Official Classification of 1855.

  • 1852

    Acquisition by Charles Martyns

    [1]

    Charles Martyns, an English banker, acquired the estate after its prior ownership by Mr. d'Estournel.

  • 1845

    End of François Labory's ownership

    [1]

    François Labory, the owner associated with the estate's name, relinquished ownership of Château Cos Labory.

Products and positioning

A classified Fifth Growth Saint-Estèphe château positioned in the traditional Bordeaux fine-wine market, with a fruit-forward red wine intended to be approachable relatively young.

  • Saint-Estèphe red Bordeaux wine

    Château Cos Labory

    The estate's principal red wine, produced in the Saint-Estèphe appellation and associated with the Bordeaux blend tradition. Château Cos Labory is described as fruit-forward, giving it a comparatively accessible profile within the group of classified Bordeaux wines. It is intended to be consumed fairly young relative to more age-dependent classified wines, while retaining the regional identity and prestige associated with a Fifth Growth château.

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