Were Germaine de Staël and Napoleon alive at the same time?
Yes. Germaine de Staël and Napoleon were alive at the same time for 47 years, from 1769 to 1817.
Germaine de Staël was 3 when Napoleon was born.
Napoleon was 47 when Germaine de Staël died, aged 51.
Napoleon
French military leader, French Emperor 1804–1814 and again in 1815
Born 15 August 1769 · died 5 May 1821, aged 51