| Name | Erlkönig (AH) |
| YoB | 1899 |
| Sex | horse |
| Colour | bay |
| Sire | Tonquin (US) or Allen Kenney (US) |
| Dam | Anni (AH), 1892 |
| Damsire | Benefici (RU), 1874 |
| Breeder | Leopold Wanko |
| Birthplace | Wien, Nieder-Österreich (Wien, Niederösterreich) |
| Erlkönig (AH), 1899 | |||
| Anni (AH), 1892 | Benefici (RU), 1874 | Bulatnyj (RU) | |
| Serditaja (RU) | |||
| Mary (IRE), 1878 | ? | ||
| ? |