Henri Marie Archambault de Montfort was born on January 19, 1889, in La Flèche (Sarthe). He defended his political science thesis on Condorcet’s ideas on suffrage in 1915 at the University of Poitiers.
He was the director of Alexandre Ribot’s secretariat during Ribot’s last term as President of the Council of Ministers and Minister of Foreign Affairs (March - September 1917).
In 1919 he married Annie Deguirmendjian-Shah-Vekil, with whom he published several books. They had four children: Claude, Marc, Anne-Marie and François. A specialist in Eastern European issues, Henri de Montfort was a professor at the Institute of Higher International Studies and at the Centre for Polish Studies in Paris.
From 1923 to 1932, Henri de Montfort was the special correspondent for French newspaper Le Temps in Poland and in Baltic states. He published several works about the political situation and the history of Poland, Finland, and the Baltic States.
In his works and in the lectures he organized, Henri de Montfort presented the contribution of Baltic peoples, highlighted the French influence in these countries and warned of the German threat.