https://www.bloodhorse.com/horse-racing/articles/60909/miesque-top-racehorse-and-broodmare-dies

[SeaBird]

"Miesque, the first two-time winner of a Breeders’ Cup race and the dam of top sire Kingmambo, was euthanized Jan. 20 at the Oak Tree Division of Lane’s End Farm in Central Kentucky due to the infirmities of age"