inputs: hypothesis: Franz Liszt lived from 1811 to 1886. premise: From 1835 to 1839 Franz Liszt lived with Marie Catherine Sophie de Flavigny, ex-wife of the Comte d'Agoult. She is better known by her pen name, "Daniel Stern." They had two daughters, Blandina (1835-1862) and Cosima (1837-1930), and one son, Daniel (1839-1859).