14. In 1833, Liszt began an affair with the married Countess Marie d'Agoult. This relationship lasted until 1839 and bore three children, including daughter Cosima who in 1870 became the second wife of which great composer?
From Quiz Franz Liszt, Teenage Idol
Answer:
Richard Wagner
Countess Marie d'Agoult, an author known by the pen name Daniel Stern, was married to Charles Louis Constant d'Agoult and had two daughters with him before beginning her affair with Liszt. Although their union was initially conducted in secret, it became common knowledge when in 1835 when she left her husband to live with Liszt, bearing him three children: Blandine, Cosima and Daniel.
Cosima married conductor Hans von Bülow aged 20 in 1857 and the couple had two children before Cosima began an affair with German composer Richard Wagner, 24 years her senior and only two years younger than her father.
With Wagner, Cosima had three children: Isolde, Eva and Siegfried.