| Meno | Prince Roycroft (AH) |
| Rok nar. | 1911 |
| Pohlavie | rebec |
| Farba | ryavá |
| Otec | Roycroft (US), 1895 |
| Matka | Princess Constantine (US), 1893 |
| Otec matky | Constantine (US), 1887 |
| Chovatež | Szent-Ivány Farkas |
| Miesto narodenia | Apcz, Kom. Hewesch, Ungarn (Apc, Magyarország) |