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.
Charles-Antoine Clevenbergh Charles-Antoine Clevenbergh (14 July 1755 – 6 January 1810) was a Flemish painter of still-life.