Cognac and Brandy are different kinds of refined wine. You most likely have tasted both, and you did not realize it. Brandy is a type of alcoholic beverage made from fermented fruit juice. Cognac, on the other hand, is a type of brandy. It is only made in two specific places in France. It is established under specific legal rules.
Cognac is made from grapes grown only in prefectures of Charente and Charente Maritime. In summary, all cognac is brandy, but not all brandy available is cognac. Cognac is only a type of brandy.
You probably realize by now that brandy and cognac are two alcoholic beverages that a lot of people would like to drink. Cognac is known to be a type of brandy that is considered to be the best brandy that money can purchase. Cognac is a bit different from the typical brandy, probably because of the type of grapes that are used to make this variety.
The cognac would also have to go through a long process before it can become available to people. Of course, not all cognacs are the same. Some are better than others. The other types of brandy are created from fermented fruit juice.