siblings of Theon xx

full siblings

broodmare Extempore xx (Thoroughbred, 1840, from Emilius xx)

Extempore xx

stallion Euclid xx (Thoroughbred, 1836, from Emilius xx)

Euclid xx

stallion Mathematician xx (Thoroughbred, 1844, from Emilius xx)

Mathematician xx

broodmare Laura xx (Thoroughbred, 1834, from Emilius xx)

Laura xx

broodmare Equation xx (Thoroughbred, 1838, from Emilius xx)

Equation xx