Adolf Hitler · Oscar Niemeyer Were Adolf Hitler and Oscar Niemeyer alive at the same time? Yes. Adolf Hitler and Oscar Niemeyer were alive at the same time for 37 years, from 1907 to 1945. Adolf Hitler was 18 when Oscar Niemeyer was born.Oscar Niemeyer was 37 when Adolf Hitler died, aged 56. Adolf HitlerDictator of Germany from 1933 to 1945Born 20 April 1889 · died 30 April 1945, aged 56Oscar NiemeyerBrazilian architectBorn 15 December 1907 · died 5 December 2012, aged 104 Mahatma GandhiVladimir LeninAlbert EinsteinAdolf HitlerOscar NiemeyerRonald ReaganNelson MandelaDonald TrumpMichael JacksonBarack Obama Adolf Hitler and Oscar Niemeyer in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.