Franco Stella is the architect of the reconstructed Berliner Schloss. Kathrin Lange is the Head of Restoration at the Stiftung Preußische Schlösser und Gärten in Potsdam. Bernd Lindemann is an art historian and the former director of the Gallery of Paintings of the Staatliche Museen zu Berlin. Peter Stephan teaches art history at the University of Applied Sciences in Potsdam. He has published numerous books on Baroque architecture and imagery.