Prohaska (Prochaska), Jaroslav 'Jaro' 24.jan.1891-28.sep.1965 Austria, Vienna - Germany, Munich
baritone singer, 1907-1909 organist/choirmaster at St Thekla in Vienna, 1918-1922 choral conductor in Vienna, 1947-1959 director of the Opernschule of the Hochschule fur Musik in Berlin ; brother of cellist Paul Georg Prohaska (Vienna 9.apr.1903-2.jun.1989 Graz)