Château is a French term that typically refers to a castle, manor house, or large estate, often associated with vineyards in wine-producing regions like Bordeaux. While historically it meant a fortified residence of nobility, today it is commonly used for prestigious wineries, particularly in France.

In winemaking, a château is often a wine estate where grapes are grown, harvested, and made into wine under a single property's name. For example, Château Margaux and Château Latour are famous Bordeaux wine estates.

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In the context of winemaking, a **Château** refers to a **wine estate**, particularly in France, where wine is produced from grapes grown on the property. The term is most commonly associated with Bordeaux, where it signifies that the wine is made from estate-grown grapes and vinified on-site.

French wine laws, especially in Bordeaux, regulate the use of "château" on labels. For example, in the **Appellation d'Origine Contrôlée (AOC)** system, a **château-labeled wine** must come from a specific vineyard or estate, and the grapes must be processed at the property.

Famous examples include **Château Margaux**, **Château Latour**, and **Château Mouton Rothschild**, which are prestigious estates known for their terroir-driven wines.