Anglo-Norman language
For centuries after the Conquest, the Norman kings and high-ranking nobles in England and to some extent elsewhere in the British Isles spoke Anglo-Norman, a variety of Old Norman, originating from a northern langue d'oïl dialect. Merchants and lower-ranked nobles were often bilingual in Anglo-Norman and English, whilst English continued to be the language of the common people. Middle English was influenced by both Anglo-Norman, and later Anglo-French (see characteristics of the Anglo-Norman language).