Because the Nazis banned so-called "degenerate art" from entering Germany, art so designated in France was looted and held in what became known as the "Martyr's Room" at the Galerie nationale du Jeu de Paume in Paris. Much of Rosenberg's professional and personal collection was branded as "degenerate art" and thereby fell under the mandate of the Commission for the Exploitation of Degenerate Art. Following Joseph Goebels personal directive to sell these degenerate works for foreign currency to fund the building of the Führermuseum and the wider war effort, Hermann Göring appointed a series of ERR-approved dealers to liquidate these assets. Göring instructed them to give him the proceeds, with which he intended to grow his personal art collection. With much of this looted art sold onwards via Switzerland, Rosenberg's collection was scattered across Europe.