Mononymous person town of Stendal, birthplace of the German art historian Johann Joachim Winckelmann, whom Stendhal admired. In the 20th century, a fourth French writer, Sidonie-Gabrielle Colette (author of "Gigi", 1945), used her actual surname as her mononym pen name, Colette. Some French actors and singers have used their given name or surname as a stage mononym. In the 17th and 18th centuries, most Italian castrato singers used mononyms as stage names (e.g. Caffarelli, Farinelli). The German writer, mining engineer and philosopher, Georg Friedrich Philipp Freiherr von Hardenberg (1772–1801), became famous as Novalis. The 19th-century Dutch writer Eduard Douwes Dekker (1820–87), better
Gabrielle Renaudot Flammarion Gabriella. Gabrielle Renaudot Flammarion Gabrielle Renaudot Flammarion (31 May 1877 – 28 October 1962) was a French astronomer. She worked at the Camille Flammarion Observatory at Juvisy-sur-Orge, France, and was General Secretary of the Société Astronomique de France. She published work in the changing surface features of Mars, the Great Red Spot on Jupiter, and observations of other planets, minor planets and variable stars. Born as Gabrielle Renaudot, she was married to Camille Flammarion, who also was an accomplished astronomer. A crater on Mars is named in her honor, and her first name was the basis for naming the asteroid