siblings of Sea Serpent xx

half siblings maternal 3 half siblings paternal 5

half siblings maternal

broodmare Sea Pie xx (Thoroughbred, 1926, from Friar Marcus xx)

Sea Pie xx
gender-female
1926

Friar Marcus xx / Spearmint xx

broodmare Henna Girl xx (Thoroughbred, 1923, from Kwang Su xx)

Henna Girl xx
gender-female
1923

Kwang Su xx / Spearmint xx

broodmare Sea Mark xx (Thoroughbred, 1929, from Friar Marcus xx)

Sea Mark xx
gender-female
1929

Friar Marcus xx / Spearmint xx