siblings of Seahorse xx

half siblings maternal 1 half siblings paternal 3

half siblings paternal

stallion His Royal Highness xx (Thoroughbred, 1851, from Blackdrop xx)

His Royal Highness xx
gender-male
1851

Blackdrop xx / Prince Lewellyn xx

stallion Percy xx (Thoroughbred, 1856, from Blackdrop xx)

Percy xx
gender-male
1856

Blackdrop xx / Hetman Platoff xx

horse Apropros xx (Thoroughbred, 1855, from Blackdrop xx)

Apropros xx
gender-male
1855

Blackdrop xx / Touchstone xx