Diego Velazquez held off a late charge from Notable Speech to come out on top in the Aga Khan Studs Prix Jacques le Marois at Deauville.
The Aidan O'Brien-trained colt was recently purchased by Sam Sangster and was running for the first time in the family's famous silks under Christophe Soumillon.
The bay was running alongside stablemate The Lion In Winter in the Group One, who was joined by Roger Teal's Dancing Gemini in making much of the running throughout the one-mile trip.
Diego Velazquez was always travelling well on the outside, however, and threw down his challenge in the final stages to see off a rapid finish on the inner rail from Charlie Appleby's Notable Speech.
