Aidan O'Brien hails St Mark's Basilica as superstar is retired

Aidan O'Brien hails St Mark's Basilica as superstar is retired

By Racing TV
Last Updated: Tue 5 Dec 2023
Aidan O’Brien hailed St Mark’s Basilica as “possibly the best horse we have ever had” after Coolmore announced the multiple Group One winner has been retired to stud.
Having been crowned last year’s European champion two-year-old after rounding off his juvenile campaign with victory in the Dewhurst at Newmarket, the Siyouni colt picked up where he left off by claiming Classic glory in the French 2000 Guineas.
He landed another Classic win in the French Derby before beating his elders for the first time in the Coral-Eclipse at Sandown – seeing off subsequent Juddmonte International hero Mishriff in dominant style.
Having missed a rematch with Mishriff at York due to a leg injury, St Mark’s Basilica made it four from four for the season in an epic renewal of the Irish Champion Stakes at Leopardstown.
But O’Brien revealed last week his star colt had not yet returned to full work, with the injury suffered pre-Leopardstown again causing problems, and it was confirmed on Monday afternoon he had run his final race.
O'Brien said: "St Mark’s Basilica is possibly the best horse we have ever had in Ballydoyle.
"He was obviously a little bit sore after the Irish Champion and the lads made the decision that he was just too important to risk really.
“He was an amazing horse for us to have had - he’s done it all.
"He won a Dewhurst, a French Guineas and French Derby and beat two serious horses in the Eclipse.
"To go and win an Irish Champion Stakes after what happened to him just before York - he’s an incredible horse really."
O'Brien expects St Mark's Basilica to prove a valuable addition to the stallion ranks at Coolmore.
He said: "We were so lucky to have him and he’s going to be such an important stallion.
"He had all the good genes from Galileo - the action, the movement and the determination, and then he had the speed from Siyouni.
"He’s a unique horse really."
Coolmore's David O'Loughlin added: "He’s the most exciting prospect we’ve retired from Ballydoyle since his late grandfather Galileo.
“European Champion Two-Year-Old, the highest-rated three-year-old in the world, a 1.3million guineas yearling by a top sire in Siyouni, a half-brother to another brilliant horse in Magna Grecia, both out of Galileo’s group-winning two-year-old Cabaret.
“He has everything and he’ll get terrific support from his owners’ broodmare band too.”
Don't miss out! Watch all the meetings that matter this Autumn with a FREE month of Racing TV! Click here for more details.
Featured offers
Bet £10 Get £30 in free bets with Betano
T&Cs Apply
Claim Now
Betano: Bet £10 get £30 in free bets with Betano
Bet £10 Get £30 in free bets + Money back 2nd to SP fav with BOYLE Sports
T&Cs Apply
Claim Now
18+. New UK customers only. Bet £10 Get £30 in free bets. T&Cs apply. 
Bet £10 & Get £30 in free bets with bet365
T&Cs Apply
Claim Now
 Min deposit requirement. Free Bets are paid as Bet Credits and are available for use upon settlement of bets to value of qualifying deposit. Min odds, bet and payment method exclusions apply. Returns exclude Bet Credits stake. Time limits and T&Cs apply. Registration required 18+ GambleAware 
Bet £10 Get £30 in free bets in Multis with Betfair
T&Cs Apply
Claim Now
 Place a min £10 bet on Sportsbook on odds of min EVS (2.0), get 3x £10 in Free Bet Builders, Accumulators or multiples to use on any sport. Rewards valid for 30 days. Only deposits via Pay by Bank, Apple Pay or Debit Card will qualify. T&Cs apply. Please Gamble Responsibly. 
Bet £10 get £40 in free bets with Kwiff
T&Cs Apply
Claim Now
Place a £10 bet get 4 x £10 free bets with Kwiff
Copyright 2026 Racing TV - All Rights Reserved.
My Account
Home
Watch
Live
Replays
On Demand
Catch Up
Tv Schedule
RTV Play Schedule
Racecards
Racecards
Today's Runners
Non-Runners
Tommorow's Runners
Racing Calendar
Results
Tips
Racing TV Tipsters
Nap Of The Day
News
All
Latest
Highlights
Columnists
Most Viewed
Free Bets
Members
Benefits
Join
RtvExtra
Club Days
Syndicate
Magazine
Rewards4Racing
Tracker
More
Racecourses
Profiles
Podcasts
Packages
Competitions
Racecourse Offers
Racing TV Syndicate
Casino Offers & Free Spins
RaceiQ
Safer Gambling
TV Authentication
Betting Guides
Best Betting Sites UK
Royal Ascot Free Bets
Patch Time
DeviceID
Version
production-
Races
Tips
Watch
Results
Menu