<prompt> Qedela umusho olandelayo: UChristian Gessner noma uGeßner; owazalwa ngo-16 Juni 1968 ungumbhukudi waseJalimane osethathe umhlalaphansi owathola izindondo ezintathu emjahweni wamamitha angama-200 nawama-400 emjahweni we-Medley eMpini YaseYurophu Yokuqhudelana.  <response>: Unyaka we-1991 European Aquatics Championships kanye no-1991 World Aquatics Championships. Ngonyaka olandelayo, waphothula endaweni yesihlanu emidlalweni efanayo kuma-Olympic Asehlobo ka-1992. 