Wiktionary:About Rhine Franconian
Appearance
Rhine Franconian (gmw-rfr) is a variety of West Central German. It includes Hessian, Lorraine Franconian / Lothringisch, and Palatine German (which formerly had the code pfl).
Pennsylvania German (pdc) and Volga German (gmw-vog), which are descended from Palatine German, are treated as independent languages.