Who is older, Bertalan Farkas or Umberto Guidoni? 
Bertalan Farkas: Bertalan Farkas (born August 2, 1949) is the first Hungarian cosmonaut and the first Esperantist in space. Umberto Guidoni: Umberto Guidoni (born in Rome 18 August 1954) is an Italian astrophysicist, science writer and a former ESA astronaut, being the first European to visit the International Space Station.
Bertalan Farkas