siblings of Double First xx

full siblings 2 half siblings maternal 2 half siblings paternal 21

half siblings maternal

horse Westbourne xx (Thoroughbred, 1876, from The Duke xx)

Westbourne xx
gender-male
1876

The Duke xx / Flatcatcher xx

broodmare Granite xx (Thoroughbred, 1872, from The Duke xx)

Granite xx
gender-female
1872

The Duke xx / Flatcatcher xx