Roaring Lion was the winner in the Betfred Dante Stakes. Oisin Murphy rode the John Gosden trained horse to victory, finishing well ahead of Crossed Baton, jockeyed by Frankie Dettori.
Fifth in the 2000 Guineas at Newmarket less than a fortnight ago, John Gosden's colt was the 3-1 favourite as he stepped up to a mile and a quarter for the first time in this recognised trial for next month's Investec Derby at Epsom.
Mildenberger cut out much of the running, closely pursued by the winner's stablemate, Crossed Baton, while Oisin Murphy kept his powder dry aboard Roaring Lion in the middle of the pack.
Once given his head racing inside the final two furlongs, the American-bred colt readily accelerated to the lead and fairly shot clear, leaving his rivals trailing in his wake as he passed the post four and a half lengths to the good.
Mark Johnston's Mildenberger (7-2) boxed on for second, with Aidan O'Brien-trained 50-1 shot Zabriskie coming from the rear of the field to grab third.