His paternal grandparents were born to Jewish families (from Ukraine, Russia, and Romania) that emigrated to France. His paternal grandmother, Ginette Kolinka, survived the Auschwitz concentration camp.
The character of "Bertrand de Jouvenel" (in "Colette: une femme libre) was written for him (by his mother and his grandmother, Marie Trintignant and Nadine Trintignant).