Tac features in Sagaro septet
Tac De Boistron tops a seven-strong field for Wednesday's Longines Sagaro Stakes at Ascot.
Marco Botti's charge claimed Group One victory in Prix Royal-Oak on his final start in 2013 and will have to shoulder a penalty for that success as he makes his seasonal bow in the Group Three heat.
Harris Tweed also returns to the fray for William Haggas having been narrowly denied by Royal Diamond in the Long Distance Cup on Champions Day when last seen in action.
Willie Mullins' Simenon will be trying to get back on the winning track after two defeats in Dubai over the winter, while Mick Winters' Missunited is the other Irish representative as she tries to improve upon her recent third at Limerick.
Earth Amber finished seventh behind subsequent Ascot Gold Cup winner Estimate in the race last year and she tries her luck again for Nicky Henderson.
Cesarewitch sixth Oriental Fox and Cocktail Queen round out the field.