Peter Oldenburg 1908–1980 | | |
Dominic Radziwill 1911–1976 | | |
| | George Oldenburg 1869–1957 | | | | | William George_I of_the_HellenesOldenburg 1845–1913 Olga Constantinovna … 1851–1926 | | | | Louise of_Hesse-Cassel … 1817–1898 | | | | Frederick William of_Schleswig-… 1785–1831 Louise Caroline of_Hesse-Cassel… 1789–1867 | | | | Charles of_Hesse-Cassel … 1744–1836 | | |
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| | | William of_Hesse-Cassel … 1787–1867 Louise Charlotte of_Denmark… 1789–1864 | | | | Frederick of_Hesse-Cassel … 1747–1837 Caroline of_Nassau- Usingen… 1762–1823 | | |
| | | Sophia Frederica of_Mecklenburg-… 1758–1794 | | |
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| | | Constantine Nikolaievitch of_Russia… 1827–1892 Elizabeth Alexandra of_Saxe-… 1830–1911 | | | | Nicholas_I Romanov 1796–1855 Charlotte of_Prussia … 1798–1860 | | | | Maria Feodorovna of_Wurttemberg… 1759–1828 | | |
| | | Frederick William_III … 1770–1840 Louise of_Mecklenburg- Strelitz… 1776–1810 Auguste von_Harrach 1800–1873 | | |
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| | | Joseph of_Saxe- Altenburg… –1868 Amalie of_Wurttemberg … –1848 | | | | Ludwig of_Wurttemberg … – | | |
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