PROSPERINA f. 1949
- , by

PROTEST (USA) f. 1970
RASH PRINCE (USA) - DYNAMIS (USA), by SAILOR (USA)

PROTESTING BID (USA) f. 1970
HAIL TO ALL (USA) - FLEET TREAT (USA), by FLEET NASRULLAH (USA)

PROUD ARION (USA) c. 1974
PROUD CLARION (USA) - KHALETTE (USA), by KHALED (GB)

PROUD CLARION (USA) c. 1964
HAIL TO REASON (USA) - BREATH O'MORN (USA), by DJEDDAH (FR)

PROUD RIVER (BRZ) c. 2009
NEDAWI (GB) - CRISTIE (BRZ) , by BARONIUS (BRZ)

PROUDEST ROMAN (USA) c. 1968
NEVER BEND (USA) - ROMAN SONG (USA), by ROMAN (USA)

PROVE IT (USA) c. 1957
ENDEAVOUR (ARG) - TIME TO KHAL (USA), by KHALED (GB)

PROVE OUT (USA) c. 1969
GRAUSTARK (USA) - EQUAL VENTURE (USA), by BOLD VENTURE (USA)

PROVIDENCE (USA) f. 1947
EASTON (FR) - WAR KILT (USA), by MAN O'WAR (USA)