Nazi-loot panel asks Sprengel Museum to return Schmidt-Rottluff work to heirs

The German governments advisory panel on Nazi-looted art has asked the Sprengel Museum in Hanover to return Marsh Landscape With Red Windmill, a 1922 watercolour by Karl Schmidt-Rottluff, to the grandchildren of Max Rdenberg, a Jewish businessman who died in the Holocaust.Rdenberg imported feathers from Shanghai that he washed in his factory by the river Leine in Hanover to sell to eiderdown manufacturers. A philanthropist and patron of the arts, he amassed a collection of Modern artparticularl