Wikipedia
Mirska
Mirska (1909 – after 1913) was a Thoroughbred racehorse that won the 1909 Epsom Oaks. Raced only three times in her lifetime, her only win occurred in the Oaks. Despite being a daughter of two English Classic winners, Mirska was not favoured to win the Oaks and won the race at 33-1 odds against the Derby winner and favourite Tagalie. She made no impact as a broodmare in France.