Esoterique and Realtra have been supplemented for Saturday's Kingdom Of Bahrain Sun Chariot Stakes making it a potential field of 10 for the Group One at Newmarket.
Realtra has been a revelation since joining Roger Varian's stable from Richard Fahey when sold for £290,000 at Goffs London Sales in June.
She has won both her starts, the Listed Dick Hern Fillies' Stakes at Haydock and the Group Three Sceptre Stakes at Doncaster, to earn her chance at the top level.
Esoterique, trained by Andre Fabre, defeated stablemate Territories to win the Prix Jacques le Marois on soft ground at Deauville last month.
She was fourth in this race last year behind Integral when another Fabre raider, Miss France, was second. They too are among the 10 possibles.
Integral, trained by Michael Stoute, bids to bounce back after being below par when fifth of six to Amazing Maria in the Duke of Cambridge Stakes at Royal Ascot.
As well as the Fabre pair there are two other French contenders, in the Carlos Laffon-Parias-trained Bawina and Maimara from Mikel Delzangles' stable.
Matron Stakes fourth Raydara, trained by Mick Halford, is the sole Irish representative, while Barry Hills' Fadhayyil, Martyn Meade's Irish Rookie and Malabar, trained by Mick Channon, complete the list.
