Goethe, Therese Brunsvik and Others; Using Unknown Documents.] Munich: Wunderhorn. Unger, Max (1910): Auf Spuren von Beethovens Unsterblicher Geliebten. [Traces of Beethoven's Immortal Beloved.] Langensalza. Walden, Edward (2002): "Beethoven's 'Immortal Beloved': Arguments in Support of the Candidacy of Bettina Brentano". The Beethoven Journal, vol. 17, no. 2: pp. 54–68. Walden, Edward (2011): Beethoven's Immortal Beloved. Solving the Mystery. Lanham, Maryland: Scarecrow. External links Ludwig van Beethoven Unidentified people Love stories