Brie is a historic region of France most famous for its Brie cheese. It was once divided into two sections ruled by different feudal lords: Brie française, corresponding roughly to the modern département of Seine-et-Marne in the Île-de-France région; and Brie champenoise, forming a portion of the modern département of Marne in the historic region of Champagne (part of modern-day Champagne-Ardenne).