Sirio IV 
Info
| dark-chestnut stallion | |
| foaled: 1935-00-00 | died: n/a |
| sire: SIRIO III | sireline: Ursus (via Sirio III) |
| dam: ARMIDA 1929 | damline: Zarifa 1901 (branch: Euterpe) |
| strain: not known | |
| Breeder: Cristobal Colon Duke de Veragua Valjuanete Stud Spain | |
