E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Châteaux en Espagne. [Castles in Spain.]
A castle in the air; something that exists only in the imagination. In Spain there are no châteaux. (See CASTLE.)
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Château. Many wines are named after the manor on which the grapes are grown: as Château Lafitte, Château La Tour, Château Margaux, Château Rose (and Bordeaux), Château Yquem (a white Bordeaux), etc.