Charles Émile Troisier

Charles Émile Troisier was born on 6 April 1844 in Sévigny-Waleppe, Ardennes. His mother was Marie-Louise Adeline Marache and his father Antoine Édouard Troisier, a health officer at Sévigny.[1] He became a doctor of medicine in Paris in 1874, then a professor at the Faculty of Medicine of the University of Paris and a member of the Académie Nationale de Médecine.

He was made a knight of the Legion of Honour on 6 January 1890.[1]

He had a close relationship with Princess Marie Bonaparte.[2] His son, Jean Troisier (1881–1945), also became a doctor and biologist, and was head of the laboratory at the Pasteur Institute.[3] His granddaughter, Solange Troisier (1919–2008) was a doctor and a leading feminist.[4]

• Joseph Marie Jules Parrot (1886). Charles Emile Troisier (ed.). La Syphilis Hereditaire Et Le Rachitis (in French).

The following are named for him:

• Troisier's sign, a hard, enlarged, left supraclavicular lymph node[5]
• Troisier-Hanot-Chauffard syndrome, a form of diabetes mellitus[6]