Château

A château is a manor house or residence of the lord of the manor, or a fine country house of nobility or gentry, with or without fortifications, originally, and still most frequently, in French-speaking regions.

It is specifically: "1. a castle or fortress; 2. a stately residence imitating a distinctively French castle; 3. a country estate, especially a fine one, in France or elsewhere on the Continent; 4. a winegrower's estate, especially in the Bordeaux region of France: often used as part of the name of a wine."

Source: Wikipedia