Károly Thern Károly Thern(13 August 1817 – 13 April 1886)[1][2] was a Hungarian composer, pianist, conductor and arranger. He was of German descent, but was among the second generation of composers who developed the language of Hungarian art music Thern was born in 1817,in Spišská Nová Ves (Zipser Neudorf in German, Iglo in Hungarian; now in Slova..