Erika Franziska Johanna Sietz 1878–1947 | | |
Hans Oskar Franz Max Sietz 1916–1941 | | |
Felix Max Eberhard Sietz 1917–1951 | | |
| | Felix Johann Julius Christian Sietz 1880–1917 Helene Bertha Johanna Charlotte Bischoff 1889–1973 | | |
Gerhard Erich Max Sietz 1885–1935 | | |
Reinhold Curt Franz Johannes Sietz 1895–1973 | | |
| | Johanna Amalia Bertha Ziems 1856–1931 Franz Heinrich Sietz 1848–1922 | | | | Johann Julius Ziems 1823–1872 Florentina Renata Taube 1824–1905 | | | | | Anna Maria Elisabeth Rekowsky 1795–1846 | | | | | Anna Maria Elisabeth Bolhagen – | | |
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| | | Johann Friedrich Sietz 1798–1872 Ernestine Beate Juliane Siewert 1811–1864 | | | | Charlotte Lovisa Brickmann 1775–1861 | | | | Anna Renata Podewils 1747–1804 | | |
| | | Johann Erdmann Brickmann – Dorothea Elisabeth Drawe – |
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| | | George Gottlieb Siewert 1763–1821 Juliane Sophia Grulich –1842 | | |
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