siblings of Mars xx

half siblings maternal 2 half siblings paternal 15

half siblings maternal

stallion MacGregor xx (Thoroughbred, 1867, from Macaroni xx)

MacGregor xx
gender-male
1867

Macaroni xx / The Fallow Buck xx

broodmare Ivy xx (Thoroughbred, 1874, from King of the Forest xx)

Ivy xx
gender-female
1874

King of the Forest xx / The Fallow Buck xx