| breed | Thoroughbred |
| color / sex / birth date | chestnut c ., 1966 |
| breeder | USA |
| Sire line | Nasrullah |
| Dam line | Hyacinthus mare |
| foaling reference | Ам |
| Owner | USA |
|
Bold Ruler
(USA)
USA br., 1954 |
Nasrullah
(GB)
bay, 1940 |
Nearco
(ITY)
br., 1935 |
|
Mumtaz Begum
(FR)
bay, 1932 |
||
|
Miss Disco
(USA)
bay, 1944 |
Discovery
(USA)
chestnut, 1931 |
|
|
Outdone
(USA)
bay, 1936 |
||
|
Monarchy
(USA)
USA bay, 1957 |
Princequillo
(IRE)
bay, 1940 |
Prince Rose
(GB)
bay, 1928 |
|
Cosquilla
(GB)
bay, 1933 |
||
|
Knight's Daughter
(GB)
bay, 1940 |
Sir Cosmo
(IRE)
br., 1926 |
|
|
Feola
(GB)
br., 1933 |