Friedrich Wieck Friedrich Wieck Johann Gottlob Friedrich Wieck (18 August 1785 – 6 October 1873, aged 88) was a noted German piano teacher, voice teacher, owner of a piano store, and music reviewer. He is remembered as the teacher of his daughter, Clara, a child prodigy who was undertaking international concert tours by age eleven and who later married her father's pupil Robert Schumann, in defiance of her father's extreme objections. As Clara Schumann, she became one of the most famous pianists of her time. Another of Wieck's daughters, Marie Wieck, also had a career in music, although not nearly so illustrious
Conrad Graf of standing up to the violence that Liszt inflicted on it during his more impassioned moments of playing. Friedrich Wieck wrote in his diary in during Liszt's 1838 visit to Vienna, "We heard Liszt today at Conrad Graf's who was sweating as his piano did not survive the great duel—Liszt remained the victor." Wieck described another concert on the same visit in which Liszt "destroyed" two Grafs, as well as an Erard piano lent to him by Sigismond Thalberg. In 1840, Graf gave one of his firm's grand pianos as a gift to the young piano virtuoso Clara Wieck (Friedrich's