When most people think of brandy they think of Cognac. In fact Cognac is one of several different types of brandy, others include Armagnac, Calvados & Brandy de Jerez.
There is a saying: "not all brandies are Cognac, but all cognacs are brandies".
The name Cognac is an Appellation d'origine contrôlée and to bear the name Cognac the spirit must meet several locality and production criteria.
More info on the following coming soon:
The Cognac Region Manufacture
more info coming soon