The Rhineland shares borders with France, Belgium and the Netherlands and thus always fulfilled a special role for the development of arts. Thanks to their contacts with their colleagues in the neighbouring countries, many male and female artists benefited from important impulses for the development of their artistic creation beyond national political currents. These traditional cross-border relations show a way that can be gone with the European Union in terms of culture. The preservation of artistic heritages stemming from this network of relationships gives the Rheinisches Archiv für Künstlernachlässe its European dimension.