| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| St Mark's Basilica | f | 2018 | Thoroughbred | France | ||||
| St. | bay | c | 1957 | Thoroughbred | ||||
| St. Agnes | br. | f | 1902 | St. Frusquin | Ethel Agnes | Thoroughbred | Great Britain | |
| St. Agnes | bay | f | 1928 | Golden Broom | Bel Agnes | Thoroughbred | USA | |
| St. Albans | chestnut | c | 1857 | Stockwell | Thoroughbred | Great Britain | ||
| St. Amant | bay | c | 1901 | St. Frusquin | Thoroughbred | |||
| St. Angela | bay | f | 1865 | King Tom | Thoroughbred | Great Britain | ||
| St. Angelo | bay | c | 1889 | Galopin | Thoroughbred | Great Britain | ||
| St. Astra | bay | f | 1904 | Ladas | St. Celestra | Thoroughbred | France | |
| St. Aubyn | bay | c | 1888 | Thoroughbred | Great Britain |