Original sentence: From 1835 to 1844 she lived with virtuoso pianist and composer Franz Liszt, who was sex years younger, and was a rising concert star.Their children were Blandine (1835-1862), who was the first wife of Émile Ollivier but died at the age of 26; Cosima (1837-1930) (who married Richard Wagner, the second marriage for them both); and Daniel (1839-1859), who was a student of law in Vienna when he died of tuberculosis at age 20
Edited sentence: From 1835 to 1839 she lived with virtuoso pianist and composer Franz Liszt, who was five years younger, and was a rising concert star.Their children were Blandine (1835-1862), who was the first wife of Émile Ollivier but died at the age of 26; Cosima (1837-1930) (who married Richard Wagner, the second marriage for them both); and Daniel (1839-1859), who was already a promising pianist and gifted scholar when he died of tuberculosis at age 20