Johann Wilhelm Schirmer: Pioneer of Düsseldorf Landscape Painting Johann Wilhelm Schirmer (5 September 1807 in Jülich – 11 September 1863 in Karlsruhe) was a German landscape artist born in Jülich, within the Prussian Duchy of Jülich. He stands as one of the foremost figures in establishing the Düsseldorf School of Painting, an influential movement that profoundly shaped nineteenth-century German art and cemented its reputation for ca…