1  Johann Christian Langmann (6 Feb 1743 Ahrensberg, Mecklenburg, Germany – 1792 Ahrensberg, Mecklenburg, Germany)   +  Charlotte Esther Kohn (1755 Ahrensberg, Mecklenburg, Germany – 25 Dec 1817 Ahrensberg, Mecklenburg, Germany)      2  Catharina Maria Langmann (17 Feb 1779 Ahrensberg, Mecklenburg, Germany – )         +  Daniel Andreas Friedrich Stein          +  Karl Ernst Boettger       2  Johann Karl Joachim Langmann (31 Dec 1780 Ahrensberg, Mecklenburg, Germany – )         +  Helena Sophia Christina Schmidt       2  Charlotta Dorothea Langmann (28 Nov 1782 Ahrensberg, Mecklenburg, Germany – )      2  Marta (Maria?) Elisabeth Langmann (28 Oct 1783 Ahrensberg, Mecklenburg, Germany – )         +  Andreas Simon Ansthern       2  Johann Christian Langmann (3 Jan 1793 Ahrensberg, Mecklenburg, Germany – )