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.
František Zdeněk Skuherský František Zdeněk Xavier Alois Skuherský (July 31, 1830 – August 19, 1892) was a Czech composer, pedagogue, and theoretician.