article: Cologne Government Region
links: North Rhine-Westphalia Euskirchen Rural District Aachen Prussia Kölsch (dialect) Heinsberg Rural District Oberbergischer Rural District States of Germany 1815 Düren Rural District Rhein Erft Rural District Rhein-Sieg Rural District Rheinisch-Bergische Rural District Cologne Regierungsbezirk Bergisches Land Eifel Bonn Aachen Rural District Germany German language Leverkusen