First Growth (French: Premier Cru) status is a classification of wines primarily from the Bordeaux region of France.
With several thousand Chateaux producing their wines in Bordeaux, to be classified was to carry a mark of high prestige.
One wine (Château d'Yquem) was considered so great it was granted a special Premier Cru Supérieur classification.
Missing from the 1855 list, the Bordeaux region of Saint-Émilion offered its own classification in 1955 to improve market demand and prices.
The Classification of Saint-Émilion wine differs from the 1855 list in that it is updated approximately every ten years based on new assessments of quality.
[1][2] Pomerol has refused to create any sort of classification scheme but it has produced red wines that are among the most expensive in the world, such as Petrus.