Marguerite Cunliffe-Owen, Countess du Planty et de Sourdis was a French-born historical novelist, nonfiction author, and a syndicated newspaper columnist who published under such pseudonyms as La Marquise de Fontenoy and Officier de l'Ordre de l'Instruction Publique de France.
- Occupation
- journalist, writer, novelist
- Born
- 1859
- Died
- August 29, 1927