Röllig, Karl Leopold#
Roellig, Karl Leopold, b. Hamburg (Germany), around 1745, d. Vienna, March 4, 1804, glass harmonica player and composer. Lived in Vienna from 1791 (librarian at the court library); also became known for his inventions ("keyed harmonica" = glass harmonica with keyboard, 1795 "Orphika" = portable piano from which he developed the "Xenorphika" 1801).