Were Gottfried Wilhelm Leibniz and Johann Sebastian Bach alive at the same time?
Yes. Gottfried Wilhelm Leibniz and Johann Sebastian Bach were alive at the same time for 31 years, from 1685 to 1716.
Gottfried Wilhelm Leibniz was 38 when Johann Sebastian Bach was born.
Johann Sebastian Bach was 31 when Gottfried Wilhelm Leibniz died, aged 70.
Gottfried Wilhelm Leibniz
German mathematician and philosopher
Born 21 June 1646 (Julian calendar) · died 14 November 1716, aged 70
Johann Sebastian Bach
German composer
Born 21 March 1685 (Julian calendar) · died 28 July 1750, aged 65