Hennessy is a brand of cognac, a type of brandy specifically produced in the Cognac region of France. While cognac has a long history of production in France, Hennessy was founded in 1765 by Irishman Richard Hennessy and has become one of the most well-known and respected cognac brands in the world. Hennessy has expanded its reach globally and is enjoyed in both Europe and America. The brand is often associated with luxury and is a popular choice for special occasions and gifts.