| Name | Color | Sex | Year of birth | Microchip | Sire | Dam | Breed | Breeder |
|---|---|---|---|---|---|---|---|---|
| Xerantheme | bay | f | 1886 | Thoroughbred | France | |||
| Ximeno | c | 1944 | Full Sail | Thoroughbred | Argentina | |||
| Y Heroine | f | 1791 | Bagot | Old Heroine | Thoroughbred | Ireland | ||
| Y. Giantes | f | Diomed | Thoroughbred | |||||
| Y.Beningb.-mare | f | Thoroughbred | Great Britain | |||||
| Y.Marske-mare | f | 1794 | Thoroughbred | Great Britain | ||||
| Y.Marske-mare | f | 1795 | Thoroughbred | Great Britain | ||||
| Y.Sorcerer | bay | c | 1808 | Thoroughbred | Great Britain | |||
| Y.Sorcerer-mare | bay | f | 1815 | Paynator-mare | Thoroughbred | Great Britain | ||
| Y.Sorcerer-mare | br. | f | 1817 | Alexander-mare | Thoroughbred | Great Britain |