A Dictionary of Music and Musicians/Voigt, Henriette
VOIGT (pronounced Vogt), Henriette, née Kunze, born in 1809, a distinguished German amateur musician, and prominent figure in the musical life of Leipzig.
She was the pupil of L. Berger, and became a remarkable performer, and the warm friend of her teacher.[1] Schumann was introduced to her by Ludwig Schunke, who almost lived in the Voigts' house before his early death, and their intimacy became very close. A characteristic story illustrating this is told in the article on Schumann in this Dictionary, vol. iii. p. 389 and we may here quote Schumann's own expression—'Ich dichte, wenn ich an Sie denke,' which may be rendered 'The thought of you inspires me.' He alludes to her occasionally in his 'Davidsbündler' articles under the name of 'Eleonore'; and his entry in her album was very characteristic, consisting only of a huge crescendo mark 
reaching across the whole page, with his name below it. This, on enquiry, he explained to predict the continual increase of their friendship. Mendelssohn's contribution to her album was the first sketch of the Gondellied in F♯ minor (op. 30, no. 6); and though there is no mention of her either in his collected Letters or in the 'Familie Mendelssohn,' there is ample testimony to his esteem for her talents and her person in his 'Eight Letters' to her, published in 1981.[2] Hauptmann[3] and C. Löwe have also left the most appreciative references to her ability and taste: indeed she was, with Madame Frege, at the head of the amateurs of Leipzig in that most brilliant time.
Her husband, Carl Voigt, to whom she was married in Nov. 1830, was a Leipzig merchant, and as great an enthusiast for music as herself. He died June 15, 1881, in his 76th year, leaving 300l. to the Gewandhaus Concerts for a performance of Beethoven's Ninth Symphony every year, or at the least every two years. A few words about that Symphony, attributed to him, will be found in Schumann's 'Ges. Schriften,' 1st ed. i. 27.
Madame Voigt died on Oct. 15, 1839, in her 31st year. Schumann gave a sketch of her in the 'Neue Zeitschrift für Musik' for the 15th of the following November, under the title of 'Erinnerung an eine Freundin,' which is reprinted in his 'Ges. Schriften,' and contains some charming extracts from her journal, giving a high idea of the range of her knowledge and the depth of her sensibility.
See Jansen's 'Davidsbündler'—a very interesting book (Breitkopf & Härtel, 1883).