(b Warsaw, 26 Aug 1823; d Warsaw, 2 March 1887). Polish bass. Son of the piano maker Wilhelm Troszel of Warsaw, he studied with August Freyer and others. He made his début at Warsaw on 17 April 1843 as Rodolphe in Daniel Auber's Le lac des fées and sang at the Warsaw Opera until 1865. Particularly noted for his interpretations of bass roles in operas by Adam Minchejmer, I. F. Dobrzyński and Stanisław Moniuszko (creating the roles of Stolnik in Halka, 1858, and Zbigniew in The Haunted Manor, 1865), and in German and Italian operas, he was also a fine recital singer. After retiring from concert and operatic work in 1866, Troszel devoted himself to composition and teaching. He wrote a tutor, Szkoła do śpiewu na głos sopranowy i mezzosopranowy (Singing tutor for sopranos and mezzosopranos, Warsaw, 1860), and a book of vocal exercises for women's voices (Warsaw, n.d.), as well as composing over 50 songs and some church music.
From The Grove Book of Opera Singers in Oxford Reference.