Imperatrix (horse)
| Imperatrix | |
|---|---|
| Sire | Alfred | 
| Grandsire | Matchem | 
| Dam | Old England mare | 
| Damsire | Old England | 
| Sex | Mare | 
| Foaled | 1779 | 
| Country | Great Britain | 
| Colour | Chestnut | 
| Breeder | John Pratt | 
| Owner | John Pratt | 
| Record | 2: 1-1-0 | 
| Major wins | |
| St. Leger Stakes (1782) | |
Imperatrix (foaled 1779) was a British Thoroughbred racehorse. She raced only twice, with her only win coming in the 1782 St. Leger Stakes. She was bred and owned by John Pratt. As a broodmare, Imperatrix produced nine foals.