<human>:  Did Johann Sebastian Bach leave his first wife for his second wife?
<bot>: No, Johann Sebastian Bach did not leave his first wife for his second wife. Johann Sebastian Bach was married to Maria Barbara Bach from 1707–1720. Johann Sebastian Bach was married to Anna Magdalena Bach from 1721–1750. Maria Barbara Bach died suddenly in 1720. So Johann Sebastian Bach did not leave his first wife for his second wife.