siblings of Boss Roy xx

half siblings maternal 4 half siblings paternal 57

half siblings maternal

stallion Pietermaritzburg xx (Thoroughbred, 1898, from Saint Simon xx)

Pietermaritzburg xx
gender-male
1898

Saint Simon xx / Isonomy xx

stallion Sea King xx (Thoroughbred, 1905, from Persimmon xx)

Sea King xx
gender-male
1905

Persimmon xx / Isonomy xx

stallion Sea Prince xx (Thoroughbred, 1908, from Persimmon xx)

Sea Prince xx
gender-male
1908

Persimmon xx / Isonomy xx

broodmare Sidonia xx (Thoroughbred, 1903, from Diamond Jubilee xx)

Sidonia xx
gender-female
1903

Diamond Jubilee xx / Isonomy xx