| Name | Byron II (AH) |
| YoB | 1903 |
| Sex | horse |
| Colour | |
| Sire | Alcandre (US), 1883 |
| Dam | Byrl (US), 1892 |
| Damsire | |
| Breeder | Gróf Andrássy Géza |
| Birthplace | Biszcze, Kom. Semplin, Ungarn (Horovce (okres Michalovce), Slovenská republika) |
| Byron II (AH), 1903 | Alcandre (US), 1883 | Alcyone (US), 1877 | George Wilkes (US), 1856 |
| Alma Mater (US), 1872 | |||
| Lady Carr (US), 1868 | American Clay (US), 1860 | ||
| Kate (US) | |||
| Byrl (US), 1892 | |||