[1] Her grandparents included the communist politician Marcel Cachin and the pointillist painters Paul Signac and Jeanne Selmersheim-Desgrange.

[2] Cachin studied art history under André Chastel at the Institut d'Art et d'Archéologie of the University of Paris.

[2] In this capacity she organized numerous exhibitions, including an important Paul Klee retrospective, and oversaw the museum's move from the Palais de Tokyo to the new Centre Georges Pompidou.

[1] When the Musée d'Orsay opened in 1986 she was named director, and in this role organized retrospectives of Paul Gauguin (1989) and Georges Seurat (1991).

[2] Despite this, she still found time to compile a catalogue raisonné of works by her grandfather Paul Signac, which was published in 2000.