

| Ritter von Koch (Adel), Dr. Alexander Antonius Gilbertus | |
| B: | ? |
| D: | ? |
| Nater [NL-], Justine Jacqueline Wilhelmine | |
| B: | 14-09-1854 |
| 's-Gravenhage ZH | |
| M: | BS.....17-10-1884 |
| 's-Gravenhage ZH | |
| D: | 05-05-1889 |
| 's-Gravenhage ZH | |
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