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
Sidonie of Bavaria the bride, a marriage would not be possible before the year 1500. During this long engagement, the Palatine branch of the Wittelsbachs investigated other options for Louis, such as he French princess Suzanne of Bourbon-Beaujeu and Mary, the daughter of Duke William IV of Jülich and Berg. In 1501 Emperor Maximilian I, who was Kunigunde's brother, suggested that his cousin Sidonie could marry Duke Charles of Guelders. None of these options materialized. The engagement between Sidonie and Louis lasted until her death in late March 1505. It was not broken off when, after the death of Duke George of Bavaria-Landshut