Upland in north central France, between the Rivers Seine and Marne, east and southeast of Paris.
The western part of the region was generally in royal hands and is known as the Brie française, eventually becoming part of the province of Île-de-France. It was at one time held by Count Robert I of Dreux (d.1188), a younger son of Louis VI, and it is from him that the old capital of the district, Brie-Comte-Robert (southeast of Paris) is named. Melun, which is on the Seine and which was held by a Vicomte, was its most important town.
The eastern and larger part of the Brie was acquired from King Robert I by his son-in-law, Count Herbert II of Vermandois. After the death of his son, Count Herbert III the Old in 980/4, much of it, then called the County of Omois, passed to Count Eudes I of Blois, his nephew, an event that marked the beginning of the expansion of the Counts of Blois into the region later called Champagne.
The County of Meaux also extended into the Brie. The town of Meaux, which stands on the River Marne, is on the edge of the region. In the 1020s Meaux also passed to the Counts of Blois and the County of Champagne was almost formed. The eastern Brie is called the Brie champenoise, and from 1217 the Count of Champagne was called the Count of Champagne & Brie.