siblings of Headstrong xx

half siblings paternal

horse Pandion xx (Thoroughbred, 1915, from Polymelus xx)

Pandion xx

stallion Polyscope xx (Thoroughbred, 1915, from Polymelus xx)

Polyscope xx

horse Rumour xx (Thoroughbred, 1915, from Polymelus xx)

Rumour xx

broodmare Tenedos xx (Thoroughbred, 1915, from Polymelus xx)

Tenedos xx

horse Polylogy xx (Thoroughbred, 1914, from Polymelus xx)

Polylogy xx

broodmare Polyspast xx (Thoroughbred, 1914, from Polymelus xx)

Polyspast xx

horse Roli Poli xx (Thoroughbred, 1914, from Polymelus xx)

Roli Poli xx

horse Polroma xx (Thoroughbred, 1913, from Polymelus xx)

Polroma xx

broodmare Melga xx (Thoroughbred, 1913, from Polymelus xx)

Melga xx

stallion Polydamon xx (Thoroughbred, 1913, from Polymelus xx)

Polydamon xx

horse Pomerania xx (Thoroughbred, 1913, from Polymelus xx)

Pomerania xx

horse Sweet Istria xx (Thoroughbred, 1913, from Polymelus xx)

Sweet Istria xx