SOMERHILL f. 1941
ROYAL MINSTREL (GB) - SIMNEL (GB), by BLANDFORD (IRE)

SOMETHING SPECIAL (ARG) f. 2001
CONTESTED BID (USA) - SWEET KISS (BRZ), by ITAJARA (BRZ)

SOMETHINGFABULOUS (USA) c. 1972
NORTHERN DANCER (CAN) - SOMETHINGROYAL (USA), by PRINCEQUILLO (GB)

SOMETHINGROYAL (USA) f. 1952
PRINCEQUILLO (GB) - IMPERATRICE (USA), by CARUSO (---)

SON-IN-LAW (GB) c. 1911
DARK RONALD (---) - MOTHER-IN-LAW (---), by

SONATE (BRZ) f. 1991
KARABAS (GB) - HIGH FLAME (BRZ), by FELICIO (FR)

SONETICA (ARG) f. 1960
- , by

SONG (GB) c. 1966
SING SING (GB) - INTENT (GB), by

SONG OF SPRING (IRE) f. 1971
TUDOR MELODY (BRZ) - PRIMONIA (GB), by

SONG OF VICTORY (CAN) f. 1962
VICTORIA PARK (CAN) - EVENSONG (GB), by THE PHOENIX (GB)