Jan Matzal Troska
Jan Matzal (August 3, 1881 in Valašské Klobouky, Moravia – September 3, 1961 in Prague), known under pen names J. M. Troska and Jan Merfort, was a Czech writer.
After studies Jan Matzal worked in Škoda Works and other industrial companies. During World War I he was sent to the front because of attempt to cover up a sabotage by factory workers. After war Matzal lived in Yugoslavia (1921-1926), then returned to Czechoslovakia. As a lifelong sufferer from Ménière’s disease he obtained a disability pension in the age of 49. During years 1932–1949, he spent his time by writing.