“Brigitte Hamann’s new biography of Winifred Wagner, the composer’s English-born daughter-in-law, brings to light fresh evidence of the family’s involvement with Hitler and its complicity in his crimes. It took great ingenuity on the author’s part since the Wagners squirreled away their papers and refuse access to outsiders. But Hamann, a Viennese scholar, laid hands on Winnie’s letters to her best Nazi girlfriend and, with other sources, has assembled a dossier strong enough to have landed several Wagners in the Nuremburg dock.”