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
Friedrich Wieck days before the conference date, Wieck filed another appeal, an ugly, defamatory "declaration" to court objecting to the marriage, accusing Schumann of a litany of weaknesses and vices, especially habitual drunkenness and the inability to support a wife. Schumann "cannot speak coherently or write legibly," he is "lazy, unreliable, and conceited," "a mediocre composer whose music is unclear and almost impossible to perform," "incompetent, childish, unmanly, in short totally lost for any social adjustment." Some of the information he used was obtained by breaking into Clara's locked letter-box. The court did not issue a judgment for several months. Wieck took