High Quality Content by WIKIPEDIA articles! Cosima Francesca Gaetana Wagner, née de Flavigny, from 1844 Liszt; (25 December 1837 1 April 1930) was the daughter of composer Franz Liszt. She became famous as the second wife of the German composer Richard Wagner and, after his death, as director of the Bayreuth Festival for 31 years. She was born out of wedlock, at Como, Italy, to the Countess Marie d'Agoult, a longtime mistress of Liszt who, after their affair had ended, became an author using the pen name Daniel Stern. In 1857, Cosima married Hans von Bülow, a piano virtuoso, teacher and orchestral conductor. After marrying von Bülow she came into frequent contact with Wagner, to whom her father had introduced her in 1853; Wagner was 24 years her senior and still married to Minna Planer. They became intimate in 1863, and in 1866 they set up house together in a villa at Tribschen, paid for by King Ludwig II of Bavaria, on the shore of Lake Lucerne, Switzerland. Cosima and Richard were eventually married on 25 August 1870, after Minna had died, von Bülow had agreed to a divorce and Cosima, who had been baptized and raised a Catholic, had converted to Protestantism.