Francesca Gaetana Cosima Wagner was the daughter of the Hungarian composer and pianist Franz Liszt and Franco-German romantic author Marie d'Agoult. She became the second wife of the German composer Richard Wagner, and with him founded the Bayreuth Festival as a showcase for his stage works. After his death she devoted the rest of her life to the promotion of his music and philosophy. Commentators have recognised Cosima as the principal inspiration for Wagner's later works, particularly Parsifal.
