How the Nazis Looted Art in the Netherlands: Dienststelle Mühlmann
From 1940 to 1944, in Nazi-occupied Holland, the Dienststelle Mühlmann coordinated the systemic plunder of artworks. Led by Kajetan Mühlmann, it became a major player in WWII art looting.
Source: How the Nazis Looted Art in the Netherlands: Dienststelle Mühlmann