| | 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 | | |
| | | William of_Hesse-Cassel … 1787–1867 Louise Charlotte of_Denmark… 1789–1864 | | |
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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 | | |
| | | Joseph of_Saxe- Altenburg… –1868 Amalie of_Wurttemberg … –1848 | | |
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