Duchess of Marlborough xx (USA)
| Year of Birth | 1819 |
| Sex | mare |
| Colour | bay |
| Sire | Sir Archy xx (USA), 1805 |
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Pedigree
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Duchess of Marlborough xx
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Foals
| YoB | Name | Colour | Sex | Pedigree | Breeder | Birthplace |
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| 1825 | Young Duchess of Marlborough xx (USA) | bay | mare | Southern Eclipse xx (USA) - Duchess of Marlborough xx (USA) |