| | Ernesto Guillermo Piwonka 1880–1952 María Luisa Günther 1890–1944 Luz Elena Rivas Espinoza 1917–1987 | | | | | | | | Ernst Heinrich Piwonka 1817–1868 Johanna Amalia Richter 1819–1878 | | | | Friederixke Loiuse Winckelmann 1787– |
| | | Johann Friederich Richter 1796– Johanna Elisabeth Liske 1796– | | |
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| | | Catharina Siebert 1832–1917 | | |
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