Queen Catrine ends a two-year losing streak
Placed in the Group One Prix Marcel Boussac and winner only once previously, the Charlie Hills-trained filly gained a confidence-boosting success as she benefited from a big drop in grade.
Taking on four younger fillies, the 9-4 chance showed her class as she swept past the pacesetting Risen Sun in the final furlong under Oisin Murphy to oblige by a length and three-quarters.