Karel Komzak II was the son of Karel I and the father of Karel III, all conductors and composers in the Viennese style.

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Karel II had a distinguished career as a regimental bandmaster before going on to direct the orchestra in the spa town of Baden bei Wien. He became very successful and had a triumph with his orchestra at the St. Louis World Exhibition in 1904. His music was sufficiently popular to be played at Theodore Roosevelt's inauguration in 1906. Unfortunately by then Komzak was dead having fallen under a train he was attempting to catch.