| Name | Fledermaus (AH) |
| YoB | 1900 |
| Sex | mare |
| Colour | grey |
| Sire | Callisto (US), 1886 |
| Dam | Miss Viley (US), 1889 |
| Damsire | Abbottsford (US), 1872 |
| Breeder | Gestüt Ebenfurth (Baron Johann Moser) |
| Birthplace | Ebenfurth, Bez. Wiener-Neustadt, Nieder-Österreich (Ebenfurth, Niederösterreich) |