Northern Bavarian is spoken in most of the Upper Palatinate, in the southeastern parts of Upper Franconia and Middle Franconia, in the northernmost part of Upper Bavaria and in the southernmost part of Saxony (Southern Vogtland). In the south-eastern Upper Palatinate and in the northernmost part of Lower Bavaria, mixed forms of Northern and Central Bavarian - linguistically called Northern Central Bavarian - are spoken, with the city of Regensburg being a Central Bavarian linguistic island within this area.