Aidan O'Brien's Luxembourg powered home to take the Holland Cooper Coronation Cup under a canny front-running ride from Ryan Moore.
The 9-4 chance was always handily placed in the Group One, which was run at a slow pace in the early stages, as only five lined up.
Turning for home, the five-year-old was asked to accelerate by his jockey and he was well able to do so, dashing for the line and holding off the chasing Hamish to succeed by a length, as 7-4 favourite Emily Upjohn finished fourth.
O'Brien said: "Ryan controlled everything and at halfway he had everyone where he wanted them. It was an incredible ride."
