マックス・リーバーマン
In 1914, Kampf and art historian, created the "Künstler Club," a social group of prominent German artists: Max Liebermann, Max Slevogt, Hugo Lederer, Louis Tuaillonn, Gaul, Fritz Klimsch, architect Ludwig Hoffmann, musicians, Richard Strauss and Engelbert Humperdinck, and film director Max Reinhardt.