1871 - 1932 (61 Jahre)
| Luise v.Hardenberg 1901-1990 |
| Luise v.Hardenberg | |
| *: | 25 Aug 1901 |
| +: | 23 Mai 1990 |
| Hannover | |
Albrecht v.Knigge 1898-1962 |
| Albrecht v.Knigge | |
| *: | 4 Dez 1898 |
| +: | 18 Mrz 1962 |
| Hans Dietrich v.Hardenberg | |
| *: | 23 Dez 1902 |
| Huberta v.Hardenberg 1904- |
| Huberta v.Hardenberg | |
| *: | 14 Dez 1904 |
| Joachim v.d.Leyen 1897-1945 |
| Joachim v.d.Leyen | |
| *: | 28 Sep 1897 |
| +: | 23 Feb 1945 |
| Dresden | |
| Armgard v.Oertzen 1871-1932 |
| Armgard v.Oertzen | |
| *: | 7 Aug 1871 |
| Bromberg | |
| +: | 18 Nov 1932 |
| G | |
| Karl v.Hardenberg 1865-1913 |
| Karl v.Hardenberg | |
| *: | 6 Mai 1865 |
| Wien, A | |
| oo: | 28 Jun 1900 |
| Naumburg/Saale | |
| +: | 22 Okt 1913 |
| Hardenberg | |
