Cognac and Armagnac are both examples of high quality brandy. Cognac is more widely recognized than Armagnac because Cognac had the benefit of being located on a trade route that was already well established. Armagnac and Cognac are typically derived from wine made with the Ugni Blanc/Trebbiano grape. There are many grades of Cognac, but all are aged in oak for varying lengths of time. Cognac production is heavily commercialized with four companies producing the vast majority of all cognac.