b. Augsburg (Germany), 1612, d. Vienna, Feb. 11, 1665. Imperial chamber organist and Court Composer; 1634 organist at St. Stephen's; from 1637 active at the emperor's court. One of the main representatives of the Vienna piano school of the 17th century. Leopold I's music teacher and ballet composer for the Imperial Opera. Most of his works were destroyed in World War II.