| | Peter_II of_Yugoslavia … 1923–1970 | | |
| | Alexander_I Oldenburg 1893–1920 | | | | | Constantine_I Oldenburg 1868–1923 Sophie of_Prussia … 1870–1932 | | | | 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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| | | Frederick_III … 1831–1888 Victoria Adelaide Mary… 1840–1901 | | | | William_I of_Germany … 1797–1888 Augusta of_Saxe-Weimar … 1811–1890 | | | | Frederick William_III … 1770–1840 Louise of_Mecklenburg- Strelitz… 1776–1810 Auguste von_Harrach 1800–1873 | | |
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| | | Albert Augustus Charles… 1819–1861 Victoria Hanover 1819–1901 | | | | Ernest_I of_Saxe-Coburg- Saalfeld… 1784–1844 Louise of_Saxe-Coburg- Altenburg… 1800–1831 | | |
| | | Edward Augustus Hanover 1767–1820 Victoria Mary Louisa… 1786–1861 | | |
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