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| * | 30.11.1876 | Berlin, Prussia |
| † | 10.02.1902 | Charlottenburg near Berlin, Brandenburg, Preußen (now part of Berlin, Germany) |
| father: | Karl Gronen, * 06.08.1851 Aachen, † 08.09.1919 Berlin |
| mother: | Toni Markwald, * 18.09.1854 Königsberg in Prussia, † 10.05.1933 Wiesbaden |