Bernstein, sire of 70 stakes winners, was euthanized Sunday because of complications from colic, according to Castleton Lyons, the Lexington farm were he stood.
"Today is a very sad day for all of us on the farm as Bernstein was a very special stallion that in an all-too-brief career at stud has sired top-class horses throughout the world," said Shane Ryan, president of Castleton Lyons. "I would hope that Bernstein's influence in the bloodstock world will be felt for many years to come."
Bernstein, 14, was a Kentucky-bred son of the great Storm Cat, out of the Affirmed mare La Affirmed. He was purchased for $925,000 as a weanling and raced for Michael Tabor and Mrs. John Magnier.
He initially stood at Buck Pond Farm in Versailles, and he shuttled to Argentina, where he was two-time leading sire. He sired Grade 1 winners Dream Empress and Miss World. His progeny have earned almost $34 million at the track.