Pedigree of Iron Duke xx

father

stallion Sicambre xx (Thoroughbred, 1948, from Prince Bio xx)

Sicambre xx

Thoroughbred
1948

stallion Prince Bio xx (Thoroughbred, 1941, from Prince Rose xx)

Prince Bio xx

Thoroughbred
1941

Biologie xx

Thoroughbred
1935

broodmare Sif xx (Thoroughbred, 1936, from Rialto xx)

Sif xx

Thoroughbred
1936

stallion Rialto xx (Thoroughbred, 1923, from Rabelais xx)

Rialto xx

Thoroughbred
1923

Suavita xx

Thoroughbred
1928

mother

Insulaire xx

Thoroughbred
1966

Father of mother

stallion Aureole xx (Thoroughbred, 1950, from Hyperion xx)

Aureole xx

Thoroughbred
1950

stallion Hyperion xx (Thoroughbred, 1930, from Gainsborough xx)

Hyperion xx

Thoroughbred
1930

Angelola xx

Thoroughbred
1945

Ismene xx

Thoroughbred
1957

stallion Silnet xx (Thoroughbred, 1949, from Fastnet xx)

Silnet xx

Thoroughbred
1949

Ys xx

Thoroughbred
1951