Louis Sigismond Isaac Halphen was a French medieval specialist and the author of many important books over a long career. He was noteworthy as the editor of a modern edition of the famous classic Einhard's "Vie de Charlemagne", He was also known as being one of the general editors of the monumental series Peuples et civilisations.
- Occupation
- historian, secretary
- Position held
- professor, member of the École française de Rome
- Citizenship
- France
- Born
- February 4, 1880
- Died
- October 7, 1950
