siblings of Planet xx

half siblings maternal 2 half siblings paternal 12

half siblings maternal

stallion Teddy The Grinder xx (Thoroughbred, 1798, from Asparagus xx)

Teddy The Grinder xx
gender-male
1798

Asparagus xx / Highflyer xx

horse Luna xx (Thoroughbred, 1804, from Volunteer xx)

Luna xx
gender-female
1804

Volunteer xx / Highflyer xx