Calon Ségur figures in the 1855 classification as a Third Classified Growth. This ranking of the wines of Gironde, both red and white, was established in anticipation of the 1855 Universal Exhibition, during the reign of Napoléon III. The list was drawn up by the Bordeaux wine brokers at the request of the Gironde Chamber of Commerce.

The ranking was based on the growths’ reputation and the prices at which the wines were purchased at that time.
This unchanging classification only ranks the growths of Bordeaux’s Left Bank, the Graves and Sauternes.

First Growths
Château Haut-Brion, Pessac, AOC Pessac-Léognan
Château Lafite-Rothschild, Pauillac, AOC Pauillac
Château Latour, Pauillac, AOC Pauillac
Château Margaux, Margaux, AOC Margaux
Château Mouton Rothschild, Pauillac, AOC Pauillac

Second Growths
Château Brane-Cantenac, Cantenac, AOC Margaux
Château Cos-d'Estournel, Saint-Estèphe, AOC Saint-Estèphe
Château Ducru-Beaucaillou, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Durfort-Vivens, Margaux, AOC Margaux
Château Gruaud-Larose, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Lascombes, Margaux, AOC Margaux
Château Léoville-Barton, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Léoville-Las-Cases, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Léoville-Poyferré, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Montrose, Saint-Estèphe, AOC Saint-Estèphe
Château Pichon-Longueville-Baron-de-Pichon, Pauillac, AOC Pauillac
Château Pichon-Longueville-Comtesse-de-Lalande, Pauillac, AOC Pauillac
Château Rauzan-Ségla, Margaux, AOC Margaux
Château Rauzan-Gassies, Margaux, AOC Margaux

Third Growths
Château Boyd-Cantenac, Cantenac, AOC Margaux
Château Calon-Ségur, Saint-Estèphe, AOC Saint-Estèphe
Château Cantenac-Brown, Cantenac, AOC Margaux
Château Desmirail, Margaux, AOC Margaux
Château Ferrière, Margaux, AOC Margaux
Château Giscours, Labarde, AOC Margaux
Château d'Issan, Cantenac, AOC Margaux
Château Kirwan, Cantenac, AOC Margaux
Château Lagrange, Saint-Julien-Beychevelle, AOC Saint-Julien
Château La Lagune, Ludon, AOC Haut-Médoc
Château Langoa-Barton, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Malescot-Saint-Exupéry, Margaux, AOC Margaux
Château Marquis-d'Alesme, Margaux, AOC Margaux
Château Palmer, Cantenac, AOC Margaux

Fourth Growths
Château Beychevelle, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Branaire-Ducru, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Duhart-Milon, Pauillac, AOC Pauillac
Château Lafon-Rochet, Saint-Estèphe, AOC Saint-Estèphe
Château Marquis-de-Terme, Margaux, AOC Margaux
Château Pouget, Cantenac, AOC Margaux
Château Prieuré-Lichine, Cantenac, AOC Margaux
Château Saint-Pierre, Saint-Julien-Beychevelle, AOC Saint-Julien
Château Talbot, Saint-Julien-Beychevelle, AOC Saint-Julien
Château La Tour-Carnet, Saint-Laurent-de-Médoc, AOC Haut-Médoc

Fifth Growths
Château d'Armailhac, Pauillac, AOC Pauillac
Château Batailley, Pauillac, AOC Pauillac
Château Belgrave, Saint-Laurent-de-Médoc, AOC Haut-Médoc
Château Camensac, Saint-Laurent-de-Médoc, AOC Haut-Médoc
Château Cantemerle, Macau, AOC Haut-Médoc
Château Clerc-Milon, Pauillac, AOC Pauillac
Château Cos-Labory, Saint-Estèphe, AOC Saint-Estèphe
Château Croizet-Bages, Pauillac, AOC Pauillac
Château Dauzac, Labarde, AOC Margaux
Château Grand-Puy-Ducasse, Pauillac, AOC Pauillac
Château Grand-Puy-Lacoste, Pauillac, AOC Pauillac
Château Haut-Bages-Libéral, Pauillac, AOC Pauillac
Château Haut-Batailley, Pauillac, AOC Pauillac
Château Lynch-Bages, Pauillac, AOC Pauillac
Château Lynch-Moussas, Pauillac, AOC Pauillac
Château Pédesclaux, Pauillac, AOC Pauillac
Château Pontet-Canet, Pauillac, AOC Pauillac
Château du Tertre, Arsac, AOC Margaux