Linguist, musician and knight, the Duke of Brunswick, Charles d’Este-Guelph, was a unique individual indeed. Born in 1804, he was expelled from his duchy in 1830, located in what is now Germany. He fled into exile to various European cities including Paris, where he made a fortune and then moved to Geneva. In 1873, he died and bequeathed his immense fortune to Geneva in exchange for a beautiful funeral and a monument to his name. Never before had a mausoleum been built in Geneva and its construction was the subject of much debate. In the end, this monument was built in the Jardin des Alpes, in the former natural harbor of Pâquis.