Wine estates (châteaux) and wines in Bordeaux have been classified since the 18th century. Today, there are five systems; the most famous dates back to 1855, but only wines from the left bank (rive gauche) of the Gironde were taken into account, including the Médoc, Graves and Sauternes areas. Of course, excellent wines also grow on the right bank (rive droite), such as Fronsac, Pomerol and Saint-Émilion. The classification, which is over a century and a half old, applies regardless of the quality of the wines, which certainly varies from year to year. So far, there has only been one absolute exception, when Château Mouton-Rothschild was promoted from 2nd to 1st place. It is still very important and is therefore used by the wineries for marketing purposes, with the rank indicated on the label.
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