Etoile made a winning debut in the Group Three Coolmore Stud Irish EBF Fillies’ Sprint Stakes at Naas for Aidan O'Brien.
However, odds-on favourite So Wonderful never looked like threatening – and while Peace Charter stayed on for pressure for Colin Keane, it was Etoile who showed the best turn of foot.
The 12-1 chance won by half a length, with Peace Charter second and Celtic Beauty third.
The winner was given a 5-1 quote by Paddy Power for the Albany Stakes at Royal Ascot.
“She is a work companion with the other filly and is very well bred,” said O’Brien.
“Seamus was just saying that he rode her mother (Gagnoa) in the Irish Oaks to finish third behind two of ours (Moonstone and Ice Queen in 2008).
“She was working nicely, but first time it was a big ask for her. Obviously it was a good performance from a first-time-out filly, and you would imagine there would be plenty of improvement.
“I’d imagine she will go now for the Albany at Ascot.”