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| William Henry Bentinck *1738-†1809 3rd Duke of Portland |
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| Dorothy Cavendish *1750-†1794 |
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| William Charles Augustus Cavendish Bentinck *1780-†1826 lord Bentinck (uit het huis der Hertogen van Portland) |
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| Georgina Augusta Seymour *1780-†1813 |
| Georgina Cavendish Bentinck *1811-†1883 |