Magnificent seven for O`Brien Aidan O`Brien (seven) and David Loder (three) dominate the 18 confirmations for the Group Two Hackney Empire Royal Lodge Stakes at Ascot on Saturday.O`Brien`s seven includes Sholokov, who was third to his stablemate Hawk Wing and Loder`s Naheef in the National Stakes at the Curragh earlier this month.The trio from Loder`s Newmarket yard for the Group Two race over the round mile are Imtiyaz, Lahooq and Mamool.Bragadino, runner-up to Naheef in the Champagne Lanson Vintage Stakes at Goodwood, is Sir Michael Stoute`s sole entry.Newmarket trainer Sean Woods, who won this race 12 months ago with Atlantis Prince, is responsible for Ashdown Express, winner of two of his four races.