 Some parishes may be joined with others in a deanery or "vicariate forane" and overseen by a "vicar forane", also known as a "dean" or "archpriest".Per canon 518, a bishop may also erect non-territorial parishes, or "personal parishes", within his see.Personal parishes are created to better serve Catholics of a particular rite, language, nationality, or other commonality which make them a distinct community.