There is probably one generation too many here. In volume 70 of
Deutsches Geschlechterbuch, the lineage is: Bernhard to Paul to Johann to
Anton to Johann Reinhard to Franz Georg to Friedrich. Probably more
correct. However, in volume 84 of the same series, Paul Langermann born
aft 1532 is recorded as the husband of Anna Struwe.
Johannes Langermann was 1616 in Stadthagen.