| Name | Proteus (AH) |
| YoB | 1904 |
| Sex | horse |
| Colour | chestnut |
| Sire | Prometheus (US), 1889 |
| Dam | Fanny, Hbl. (AH), 1897 |
| Damsire | Martell xx (AH), 1883 |
| Breeder | Anton Pober |
| Birthplace | Arbesthal, Bez. Bruck a. d. Leitha, Nieder-Österreich (Arbesthal, Niederösterreich) |