Sauterne finished with a flourish to deny the front-running Big Rock a top-level success in the Prix du Moulin de Longchamp.
Having picked up the silver medal behind Ace Impact in the the French Derby and Inspiral in the Prix Jacques le Marois, the Christopher Head-trained Big Rock sent off favourite to make it third time lucky in Group One company and went straight to the front in the hands of Aurelien Lemaitre.
After setting a sound gallop before easing off the pace, Lemaitre kicked again on the home bend and soon had the majority of his rivals in trouble in behind.
However, it became clear in the final furlong that Big Rock’s exertions were beginning to take their toll and he was unable to resist the late charge of Sauterne and Tony Piccone.
The winner, who placed in the French 1000 Guineas, the Prix Jean Prat and the Prix Rothschild earlier this season, was completing a big-race double on the card for trainer Patrice Cottier following the victory of the Champion Stakes-bound Horizon Dore in the Prix du Prince d’Orange.