siblings of Efficient xx

half siblings paternal

broodmare Misty Morn xx (Thoroughbred, 1952, from Princequillo xx)

Misty Morn xx

broodmare Moon Princess xx (Thoroughbred, 1956, from Princequillo xx)

Moon Princess xx

stallion Dedicate xx (Thoroughbred, 1952, from Princequillo xx)

Dedicate xx

broodmare Quillon xx (Thoroughbred, 1964, from Princequillo xx)

Quillon xx

broodmare La Dauphine xx (Thoroughbred, 1957, from Princequillo xx)

La Dauphine xx

broodmare Hasty Girl xx (Thoroughbred, 1951, from Princequillo xx)

Hasty Girl xx

broodmare Sequoia xx (Thoroughbred, 1955, from Princequillo xx)

Sequoia xx

broodmare Belgian Rose xx (Thoroughbred, 1951, from Princequillo xx)

Belgian Rose xx

broodmare Regicide xx (Thoroughbred, 1951, from Princequillo xx)

Regicide xx

broodmare Sharp Queen xx (Thoroughbred, 1965, from Princequillo xx)

Sharp Queen xx

broodmare Cequillo xx (Thoroughbred, 1956, from Princequillo xx)

Cequillo xx

broodmare Princessnesian xx (Thoroughbred, 1964, from Princequillo xx)

Princessnesian xx