Which nationality is shared by Jean-Jacques Favier and Jean-Loup Chrétien?
Jean-Loup Chrétien Jean-Loup Jacques Marie Chrétien (born 20 August 1938) is a French retired "Général de Brigade" (brigadier general) in the "Armée de l'Air" (French air force), and a former CNES spationaut. He flew on two Franco-Soviet space missions and a NASA Space Shuttle mission. Chrétien was the first Frenchman and the first western European in space.
Jean Giraud (mathematician) Jean Giraud (] ; 2 February 1936 – 27 or 28 March 2007) was a French mathematician, a student of Alexander Grothendieck and the author of the book "Cohomologie non-abélienne" (Springer, 1971).