siblings of I Understand xx

half siblings maternal

stallion Royal and Regal xx (Thoroughbred, 1970, from Vaguely Noble xx)

Royal and Regal xx

broodmare Prospectors Fire xx (Thoroughbred, 1976, from Mr. Prospector xx)

Prospectors Fire xx

broodmare Mr P's Girl xx (Thoroughbred, 1978, from Mr. Prospector xx)

Mr P's Girl xx

horse Hotel Street xx (Thoroughbred, 1983, from Alleged xx)

Hotel Street xx

horse York Minster xx (Thoroughbred, 1980, from Hoist The Flag xx)

York Minster xx

horse Boca Rio xx (Thoroughbred, 1977, from Mr. Prospector xx)

Boca Rio xx

broodmare Straight Street xx (Thoroughbred, 1974, from Never Bend xx)

Straight Street xx

horse Native Admiral xx (Thoroughbred, 1969, from Buckpasser xx)

Native Admiral xx

stallion Regal And Royal xx (Thoroughbred, 1975, from Vaguely Noble xx)

Regal And Royal xx