Who was born earlier, Franz Viehböck or Jean-François Clervoy?
Jean-François Clervoy Jean-François André Clervoy (born 19 November 1958) is a French engineer and a CNES and ESA astronaut. He is a veteran of three NASA Space Shuttle missions.
Franz Jonas Franz Josef Jonas (] ; 4 October 1899 – 24 April 1974) was an Austrian political figure. He served as the seventh President of Austria, between 1965 and 1974.