HeadingHummel, Leonard used in: Integrated Authority File (GND), Germany
Variant NameHummel, Leonardus
Sources
Found inMGG. — Bayer. Musikerlex. Online. — IBN
Porträt Leonard Hummel (1757 - ca. 1801)? [This image from the German Museum of Books and Writing collection "Portraits of printers, editors, book dealers and book binders" is freely available under CC0 1.0]