The mare Mahubah was only crossed with Fair Play, reason for which she was called his "wife". In a somehow similar fashion, recently deceased Iza Valentine produced her best foals when crossed with Saros. Given her numbers, in her case she demonstrated that Saros was by far her best mate ---even over Alydar! My question: Name prolific mares who achieved this kind of consistency with a certain sire.
http://www.pedigreequery.com/progeny/iza+valentine
Saros' wife (Iza Valentine)
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