Offspring of Thunder xx

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Broodmare Immortelle xx (English Thoroughbred, 1960, from Never Say Die xx) - unknown

Immortelle xx
gender-female
1960

Never Say Die xx / Hyperion xx

Stallion Lionhearted xx (English Thoroughbred, 1961, from Never Say Die xx)

Lionhearted xx

Licensed
gender-male
1961

Never Say Die xx / Hyperion xx