Pretty Pollyanna has been retired in to stud and will be covered by Frankel.
The Michael Bell-trained daughter of Oasis Dream, was a brilliant winner of the Duchess Of Cambridge Stakes at Newmarket last year, before landing the Group One Prix Morny.
After a delayed return this spring, she ran a fine race when second to Hermosa in the Irish 1,000 Guineas.
She later finished fourth in the July Cup at Newmarket.
She is set to retire to owner Bill Gredley’s stud farm.