Siegburg is a small city of almost 40 000 found on the banks of the Sieg and Agger Rivers, and about 10 kilometers from Bonn.  Maarten has chosen a Paul  Cézanne card.  Cézanne (1839-1906) was a French post-impressionist painter. Matisse and Picasso apparently remarked that  Cézanne "is the Father of us all." The card doesn't mention what this painting is called, but it is in the collection of the Barnes Foundation in Merion, Pennsylvania.