siblings of Regal Measure xx

half siblings maternal 2 half siblings paternal 5

half siblings paternal

broodmare Mary my Queen xx (Thoroughbred, 1988, from Key to the Kingdom xx)

Mary my Queen xx
gender-female
1988

Key to the Kingdom xx / Queen's Hussar xx

broodmare Ma Biche xx (Thoroughbred, 1980, from Key to the Kingdom xx)

Ma Biche xx
gender-female
1980

Key to the Kingdom xx / Roi Dagobert xx

broodmare Bet The Rent xx (Thoroughbred, 1982, from Key to the Kingdom xx)

Bet The Rent xx
gender-female
1982

Key to the Kingdom xx / Damascus xx

broodmare Castle Eight xx (Thoroughbred, 1984, from Key to the Kingdom xx)

Castle Eight xx
gender-female
1984

Key to the Kingdom xx / Kanumera xx

broodmare Corofin xx (Thoroughbred, 1982, from Key to the Kingdom xx)

Corofin xx
gender-female
1982

Key to the Kingdom xx / unknown