The Duke of Berry was a title held by several members of the French royal family, most notably by John, Duke of Berry (1340–1416). He was a prominent figure during the late Middle Ages and a member of the Valois dynasty. The Duke was known for his patronage of the arts, including the commissioning of illuminated manuscripts, which contributed to the cultural richness of the period. The title was also associated with the region of Berry in central France. The Dukes often played significant roles in the political landscape of France, particularly during the Hundred Years' War. Their influence extended to various alliances and conflicts, shaping the history of the French nobility.