“D'Eon was considered one of the best swordsmen of France though his gender was a source of speculation until his death.” Charles Genevieve Louis Chevalier D'Eon de Beaumont. D'Eon studied fencing and horsemanship under Monsieur Taillagori and Monsieur Gueriniere respectively, alongside Domenico Angelo Tremamondo in Paris. He became a diplomat and spy, was appointed a member of the elite Dragoons, and for sometime he was a Freemason. At some point in his career he adopted female guise and attire (which he continued to do for the rest of his life) in order to facilitate his espionage. The Chevalier was sent to London as a diplomat and while there was a frequent visitor to Angelo's home and Academy. D'Eon was considered one of the best swordsmen of France though his gender was a source of speculation until his death.