[2] She first became interested in the Middle Ages, her research focused thereafter on the 17th century.
She married Jean Sainteny and circulated among the gaulliste political circles.
This participation with Jean Sainteny provided a link between the American government and Ho Chi Minh for secret negotiations.
[3][4] In 1995, she was elected in the Académie des sciences morales et politiques, in place of Jean Laloy.
[5] Claude Dulong has also held positions at the United Nations Educational, Scientific, and Cultural Organisation (UNESCO) and at the Alliance Française.