siblings of Beaupartir xx

half siblings maternal 2 half siblings paternal 50

half siblings maternal

stallion Lambourn xx (Thoroughbred, 1937, from Bulandshar xx)

Lambourn xx
gender-male
1937

Bulandshar xx / Chief Ruler xx

broodmare Firstloch xx (Thoroughbred, 1950, from Balloch xx)

Firstloch xx
gender-female
1950

Balloch xx / Chief Ruler xx