Note: Do not rely on this information. It is very old.
Champagne (town)
Champagne (town), an ancient town of France, of which Troyes was the capital, now forms the departments of Maine, Haute-Marne, Aube, and Ardennes, besides portions of Yonne, Aisne, Seine-et-Marne, and Meuse. Chief among its towns besides the capital were Bar-sur-Aube, Laon, and Rheims.

