King Louis is a patron of the German composer Richard Wagner, and the third floor to reflect the love of Louis of the legend used by Wagner in his opera for Tannhuser, a winter garden and grotto of stalactites, Lohengrin, the great room and the room unfinished Byzantine throne, its vaulted ceiling supported by inlaid stone columns and decorated with stars. The Singers Hall on the fourth floor, with a coffered ceiling, is devoted to the life of Parsifal, the hero of another famous Wagner opera.