Immortal Beloved
"A new way of looking at old evidence confirms that Josephine was Beethoven's one and only 'Immortal Beloved'. ... All of the puzzling aspects about Beethoven's affair with the 'Immortal Beloved', including his various cryptic comments, can be explained in terms of his one known beloved – Josephine. Why do we doubt his word that there was only one woman who had captured his heart?" (Steblin 2007, p. 180).