Schwertberg is a market town in Lower Austria, in Perg Area of the region of Mühlviertel. It has a population of 5.179. During World War II it housed one of the sub-camps of the Mauthausen-Gusen concentration camp complex. Map of Lower Austria showing districts and the four quarters (Waldviertel in green, Weinviertel in red, Mostviertel in yellow and Industrieviertel in blue) Lower Austria (de: Niederösterreich) is one of the nine states or Länder in Austria. ... Combatants Allies: Poland, British Commonwealth, France/Free France, Soviet Union, United States, China, and others Axis Powers: Germany, Italy, Japan, and others Casualties Military dead:17 million Civilian dead:33 million Total dead:50 million Military dead:8 million Civilian dead:4 million Total dead:12 million World War II... Mauthausen (from summer 1940, Mauthausen-Gusen; German: ) was a group of Nazi German concentration camps centred around the small town of Mauthausen in Upper Austria, about 20 kilometers east of the city of Linz. ...