Châlons-en-Champagne, formerly known as Châlons-sur-Marne, is famous for its Market Castle and its ancient churches. The Jewish presence in Châlons seems to go back a very long way, perhaps even to Roman times. In any case, it has been documented from the 11th century onwards. Indicative of this antiquity are certain street names typically given in the Middle Ages, such as and , as well as ...