It all started when EmperorNapoleon IIIrequested a classification system forFrance's bestBordeaux winesthat were to be on display at the1855 Exposition Universelle de Paris. Brokers from the wine industry ranked the wines according to achâteau's reputation and trading price, which at that time was directly related to quality. Ultimately this work gave birth to the Bordeaux Wine Official Classification of 1855. Wines were ranked in importance fromfirstto fifth growths (crus). Four of thered winesthat made it to the First Growth on the list came from theMédoc: Ch. Lafite, Ch. Mouton Rothschild, Ch. Margaux and Ch. Latour and one from Grave: Haut-Brion. Today The First Growth Bordeaux wines are among the world’s most expensive and famous wines.