Investec Derby fourth Battle Of Marengo heads 15 remaining possibles for the King Edward VII Stakes at Royal Ascot.
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The Derrinstown Stud Trials winner is one of three Aidan O'Brien-trained representatives in the 12 furlong Group Two contest.
He could be joined by Flying The Flag (eighth at Epsom) and Leading Light - a winner of three of his four starts - as the trainer seeks to land the race for the first time since 2004.
Chief among the opposition are Luca Cumani's one-time Classic hope Greatwood, who hasn't been seen since disappointing in the Dante Stakes at York, and Ed Dunlop's Contributer.
The latter beat subsequent Listed winner Cruck Realta on his reappearance and has since chased home Irish 2000 Guineas winner Magician and the promising Disclaimer.
Hillstar could step out of handicap company for the first time having finished second in the London Gold Cup at Newbury, a race that threw up last year's winner Thomas Chippendale.
Spillway was back in third at the Berkshire venue and could re-oppose for Eve Johnson Houghton while John Gosden looks set to rely upon impressive Newmarket winner Brass Ring.
Brian Meehan has left in both Eshtiaal and Number One London with Godolphin pair Secret Number and Tha'ir, Fantastic Moon, Havana Beat and Mutashaded completing the possibles.