| Name | Harlekin (AH) |
| YoB | 1905 |
| Sex | horse |
| Colour | bay |
| Sire | Potential (US), 1891 |
| Dam | Koketka (RU), 1888 |
| Damsire | |
| Breeder | Anton Bauer |
| Birthplace | Wien, Nieder-Österreich (Wien, Niederösterreich) |
| Harlekin (AH), 1905 | Potential (US), 1891 | Prodigal (US), 1886 | Pancoast (US), 1877 |
| Beatrice (US), 1875 | |||
| Helen T. (US), 1888 | Electioneer (US), 1868 | ||
| Manette (US), 1878 | |||
| Koketka (RU), 1888 | |||
| Colour | Gender | Pedigree | Breeder | ||
|---|---|---|---|---|---|
| 1908 | Hasard (AH) | bay | mare | ... - Molly Potential (AH), 1905 | Wilhelm Helmer |