Sire
Group 1 · European season 2026
St Mark's Basilica
4 Group 1 wins
2 INDIVIDUAL WINNERS4 TRACKS2 COUNTRIESPURSE OF THOSE RACES: € 2,649,613
Usual trainerAidan O'Brien · 3
Best runnerDiamond Necklace · 3
Most often atChantilly
Biggest winPrix de Diane · € 1,000,000
First win of the seasonPoule d'Essai des Pouliches · 10.05.26
Latest winNassau Stakes · 30.07.26
Winning horses2
Different trainers2
Average purse per win€ 662,403
Every Group 1 win
| Race | Country | Horse | Track | Purse | Date |
|---|---|---|---|---|---|
| Poule d'Essai des Pouliches | FRA | Diamond Necklace | ParisLongchamp | € 550,000 | 10.05.26 |
| Prix de Diane | FRA | Diamond Necklace | Chantilly | € 1,000,000 | 14.06.26 |
| Prix Jean Prat | FRA | Thesecretadversary | Deauville | € 400,000 | 12.07.26 |
| Nassau Stakes | GBR | Diamond Necklace | Goodwood | € 699,613 | 30.07.26 |
Trainers
| Trainer | Wins |
|---|---|
| Aidan O'Brien | 3 |
| J A Stack | 1 |
Winning horses
| Horse | Wins |
|---|---|
| Diamond Necklace | 3 |
| Thesecretadversary | 1 |