Austrian composer. A pupil of Arnold Schönberg, he applied an atonal manner to classical forms in works such as the opera Wozzeck (1925) and Violin Concerto (1935). American golfer who won 57 professional tournament titles, including 15 major championship titles, during her career. American chemist. He shared a 1980 Nobel Prize for developing methods for mapping the structure and function of DNA. A mass of floating or stationary ice; an iceberg. Former duchy, Holy Roman Empire. Located on the Rhine River, the area now lies in the districts of Düsseldorf and Cologne, Germany. In the 11th century the counts of Berg acquired Westphalian lands east of Cologne; these were incorporated into a duchy in 1380. Berg became a leading iron and textile manufacturing centre in the 17th-18th centuries. In 1806 Napoleon made it a grand duchy in his Confederation of the Rhine. Following the Congress of Vienna in 1814-15, it became part of Prussia