Among the noblest guests in Rahel Levin’s Salon was the young Prince Louis Ferdinand, the “Prussian Apollo”, a gifted musician. Beethoven esteemed his compositions and dedicated his third piano concert and probably also the Eroica symphony to him. The prince’s early death in the context of a battle near Jena and Auerstedt (1806) gave rise to a melancholic memorial cult. Rahel kept his bust in her room and called him “my beloved lost friend”.