| The Duchess | （ザダチェス） | 牝 | 鹿毛 | sire line | family |
| Cardinal York | Sir Peter Teazle | Highflyer | Herod | Tartar |
| Cypron | ||||
| Rachel | Blank | |||
| Regulus Mare | ||||
| Papillon | Snap | Snip | ||
| Sister One To Slipby | ||||
| Miss Cleveland | Regulus | |||
| Midge | ||||
| Charmer | Phoenomenon | Herod | Tartar | |
| Cypron | ||||
| Frenzy | Eclipse | |||
| Engineer Mare | ||||
| Fitz Herod Mare | Fitz Herod | Herod | ||
| Miss Barforth | ||||
| Young Cade Mare | Young Cade | |||
| Regulus Mare | ||||
| Miss Nancy | Beningbrough | King Fergus | Eclipse | Marske |
| Spilletta | ||||
| Creeping Polly | Portmore's Othello | |||
| Fanny | ||||
| Herod Mare | Herod | Tartar | ||
| Cypron | ||||
| Pyrrha | Matchem | |||
| Duchess | ||||
| Ruler Mare | Ruler | Young Marske | Marske | |
| Blank Mare | ||||
| Flora | Vane's Lofty | |||
| Riot | ||||
| Fitz Herod Mare | Fitz Herod | Herod | ||
| Miss Barforth | ||||
| Young Cade Mare | Young Cade | |||
| Regulus Mare |
| Born - Died | 1813 - 1836 | ||
| Breeder | Ellerker |
|
GB |
| Trainer | James Croft |
|
GB |
| Owner | William Wilson | ||
| Sir Bellingham R. Graham | |||
| John Lambton | |||
|
St. Leger Stakes (GB-T14F193Y) |
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