siblings of Sys Superstar xx

half siblings paternal

stallion Great Heron xx (Thoroughbred, 1972, from Sea-Bird II xx)

Great Heron xx

stallion Seaepic xx (Thoroughbred, 1968, from Sea-Bird II xx)

Seaepic xx

broodmare Gulls Cry xx (Thoroughbred, 1971, from Sea-Bird II xx)

Gulls Cry xx

horse Guillemot xx (Thoroughbred, 1968, from Sea-Bird II xx)

Guillemot xx

broodmare Spark Bird xx (Thoroughbred, 1973, from Sea-Bird II xx)

Spark Bird xx

broodmare Seaswan xx (Thoroughbred, 1968, from Sea-Bird II xx)

Seaswan xx

broodmare Lindaria xx (Thoroughbred, 1969, from Sea-Bird II xx)

Lindaria xx

broodmare Sunny Moon xx (Thoroughbred, 1968, from Sea-Bird II xx)

Sunny Moon xx

stallion Gorfou xx (Thoroughbred, 1971, from Sea-Bird II xx)

Gorfou xx