Who married Hélène Langevin-Joliot?

Hélène Langevin-Joliot (née Joliot-Curie; born 19 September 1927) is a French nuclear physicist known for her research on nuclear reactions in French laboratories and for being the granddaughter of Marie Skłodowska-Curie and Pierre Curie and the daughter of Irène Joliot-Curie and Frédéric Joliot-Curie, all four of whom have received Nobel Prizes, in Physics (Pierre and Marie Curie) or Chemistry (Marie Curie and the Joliot-Curies). Since retiring from a career in research Hélène has participated in activism centered around encouraging women and girls to participate in STEM fields. Her activism also revolves around promoting greater science literacy for the general public.

Michel Yves Langevin, né le 17 août 1926 à Warluis dans l'Oise et mort le 11 avril 1985 à Paris 5^e, est un physicien français, résistant durant la Seconde Guerre mondiale.