Old Norman
Old Norman, also called Old Northern French or Old Norman French, was one of many langues d'oïl dialects. It was spoken throughout the region of what is now called Normandy and spread into England, Southern Italy, Sicily and the Levant. It is the ancestor of modern Norman, including the insular dialects (such as Jèrriais), as well as Anglo-Norman. Old Norman is similar to and often confused with Old French, which is sometimes used to describe all langues d'oïl dialects together.