1878 - 1940 (62 Jahre)
1902-1947
| Carl-Dietrich v.Hardenberg | |
| *: | 1902 |
| +: | 1947 |
1906-1943
| Albrecht Friedrich v.Hardenberg | |
| *: | 8 Aug 1906 |
| +: | 24 Aug 1943 |
| Berlin | |
1905-
| Ruth v.B | |
| *: | 10 Dez 1905 |
| Hannover | |
|
1878-1940
| Clara v.Lieres | |
| *: | 20 Mrz 1878 |
| Schweidnitz | |
| +: | 17 Okt 1940 |
| Rettkau | |
1875-1909
| Albert Georg Edzard v.Hardenberg | |
| *: | 14 Jun 1875 |
| Hannover | |
| oo: | 22 Sep 1898 |
| +: | 28 Nov 1909 |
