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| Constantin Friedrich van Oldenburg *1812-†1881 |
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| Theresia Wilhelmina van Nassau Weilburg *1815-†1871 |
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| Nicolaus Friedrich August van Oldenburg *1840-†1886 prins van Oldenburg, graaf van Osternburg |
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| Maria Bulazel *1845-†1909 gravin van Osternburg |
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| Alexandra van Oldenburg *1864-†1952 gravin van Osternburg |