Adolf Hitler · Marilyn Monroe Were Adolf Hitler and Marilyn Monroe alive at the same time? Yes. Adolf Hitler and Marilyn Monroe were alive at the same time for 18 years, from 1926 to 1945. Adolf Hitler was 37 when Marilyn Monroe was born.Marilyn Monroe was 18 when Adolf Hitler died, aged 56. Adolf HitlerDictator of Germany from 1933 to 1945Born 20 April 1889 · died 30 April 1945, aged 56Marilyn MonroeAmerican actress and modelBorn 1 June 1926 · died 4–5 August 1962, aged 36 Mahatma GandhiVladimir LeninAlbert EinsteinAdolf HitlerRonald ReaganNelson MandelaMarilyn MonroeDonald TrumpMichael JacksonBarack Obama Adolf Hitler and Marilyn Monroe 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.