Old Norman, also called Old Northern French or Old Norman French (Old French: Ancien Normant,[dubious ] Norman: Ancien Normaund), was one of many langues d'oïl (Old French) dialects. It was spoken[when?] 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 was an important language of the Principality of Antioch during Crusader rule in the Levant.