Karel Navrátil (1867 - 1936) Rép. tchèque Karel Navrátil (24 April 1867 – 23 December 1936) was a Czech violinist, composer and music educator. He was born in Prague, and studied in Vienna under Guido Adler and František Ondříček, afterward working as a composer and music teacher in Prague. Notable students include composers Helen Hopekirk[1] and John Powell.[2] See: List of music students by teacher: N to Q#Karel Navrátil. He died in Prague.