Divided in two: the wine trade area and the city centre, Bordeaux was once part of England. The wine trade had a system in which wine owners had to sell through brokers to the merchants. These merchants then sold to public and were who aged the wine tothe taste of their customers but only from the 1800s.
An important fact about Bordeaux wine is that the grapes used for a bottle are to be exclusively from the region where they grow if they want to be labelled product of Bordeaux. Otherwise, mixing grapes from different areas means the bottle has to be labelled Product of France losing its exclusivity.