siblings of Smarten xx

half siblings maternal 4 half siblings paternal 18

half siblings maternal

broodmare Smart Angle xx (Thoroughbred, 1977, from Quadrangle xx)

Smart Angle xx
gender-female
1977

Quadrangle xx / Quibu xx

broodmare Smart Heiress xx (Thoroughbred, 1979, from Vaguely Noble xx)

Smart Heiress xx
gender-female
1979

Vaguely Noble xx / Quibu xx

stallion Quadratic xx (Thoroughbred, 1975, from Quadrangle xx)

Quadratic xx
gender-male
1975

Quadrangle xx / Quibu xx

broodmare Smart Darlin xx (Thoroughbred, 1982, from Alydar xx)

Smart Darlin xx
gender-female
1982

Alydar xx / Quibu xx