Louis de Beaufront

Louis Chevreux (3 October 1855, Paris – 8 January 1935, Thézy-Glimont), commonly known as Louis de Beaufront, was a major influence in the development of Ido, an international auxiliary language.

Beaufront was initially an advocate of Esperanto and was largely responsible for its early diffusion in western Europe as well as one of its first French proponents.

Beaufront first discovered Esperanto in 1888 and in 1898 founded Société Pour la Propagation de l'Espéranto (SPPE).

He was chosen to represent unmodified Esperanto before the Committee of the Delegation for the Adoption of an International Auxiliary Language, attending the meetings of the Delegation Committee in October, 1907.

Letters that are kept in the Department of Planned Languages and Esperanto Museum in Vienna show that he denied any co-authorship of Ido.