Ernst Gräfenberg Ernst Gräfenberg Ernst Gräfenberg (September 26, 1881 in Adelebsen near Göttingen, Germany – 28 October 1957 in New York City, United States) was a German-born physician (medical doctor) and scientist. He is known for developing the intrauterine device (IUD), and for his studies of the role of the woman's urethra in orgasm. The G-spot is named after him. Gräfenberg studied medicine in Göttingen and Munich, earning his doctorate on 10 March 1905. He began working as a doctor of ophthalmology at the university of Würzburg, but then moved to the Department of Obstetrics and Gynaecology at the University of Kiel,
Ernst Gadermann Ernst Gadermann Ernst Gadermann (born 25 December 1913 – died 26 November 1973) was a German physician in the Wehrmacht of Nazi Germany during World War II. He was a recipient of the Knight's Cross of the Iron Cross. After World War II he became a well known cardiologist. Gadermann joined the Luftwaffe in 1941, where he worked as a doctor in Sturzkampfgeschwader 2 "Immelmann" on the Eastern Front. In addition to his medical work, he was quickly coopted to the wing staff. Later he became an observer and gunner in the III. Group. During World War II he flew