Bordeaux has been kinda rich for almost 1000 years though. And (i'm sure this brand will be up for review within a few years) is a golden era city - like a few other wildy ornate european cities which essentially means that they made their money selling humans.
The 18th century saw another golden age of Bordeaux.[22] The Port of the Moon supplied the majority of Europe with coffee, cocoa, sugar, cotton and indigo, becoming France's busiest port and the second busiest port in the world after London.[20] Many downtown buildings (about 5,000), including those on the quays, are from this period.
Bordeaux was also a major trading centre for slaves.[23] In total, the Bordeaux shipowners deported 150,000 Africans in some 500 expeditions