Le Chevalier D’Eon usually known as the Chevalier DÉon, He was a French diplomat, spy, and soldier. D'Éon fought in the Seven Years' War, and spied for France while in Russia and England. d'Éon successfully infiltrated the court of Empress Elizabeth of Russia by presenting as a woman. He acting as a woman For 33 years, from 1777 until his death, d'Éon lived a woman's life.