descendants of Lady Susan xx

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broodmare Princess Sonia xx (Thoroughbred, 1906, from Orion xx)

Princess Sonia xx
gender-female
1906

Orion xx / Saint Simon xx

broodmare Sophie Arnould xx (Thoroughbred, 1901, from Ayrshire xx)

Sophie Arnould xx
gender-female
1901

Ayrshire xx / Saint Simon xx