After the Second World War, Schloss Leopoldskron was returned to Max Reinhardt’s heirs. At the same time, a young Austrian named Clemens Heller and his friends Scott Elledge and Richard Campbell, were studying at Harvard University. They had the idea to organize a seminar in Europe to introduce the postwar generation of young Europeans to their American counterparts, and were looking for an appropriate location.

Clemens Heller knew Max Reinhardt’s widow, Helene Thimig, who was living in the U.S. When he discussed his idea with her, she immediately offered Schloss Leopoldskron as a venue. In the summer of 1947, ninety participants from Europe and the U.S. came together for a six week dialogue. Once again, Schloss Leopoldskron became a birthplace: this time for the “intellectual Marshall Plan of Europe”.