+———Johann Friedrich Langmann (abt 1811 Rosenow, Mecklenburg-Schwerin – 12 Apr 1889 Newlands, Cape, South Africa)      |  +———Johann Theodor Carl Langmann (abt 1844 – 25 Aug 1922 Cape Town, South Africa)  |   |      |   +———Carolina Friederike Schultz (abt 1811 Rosenow, Brandenburg – 18 Jan 1864 Cape Town, South Africa)  |      Friedrich Wilhelm Carl Langmann (28 May 1876 Cape Town, South Africa – 6 Jan 1878)  |      +———Wilhelmina Christiane Friederike Pentz (abt 1845 Cape Town, South Africa – 7 Dec 1914 Cape Town, South Africa)