Desert Hero could be the first Royal runner in the Melbourne Cup since Arabian Story finished sixth in 1997.
The William Haggas-trained three-year-old has been touted as a possible candidate for the Melbourne Cup, following a run in the UK's final and oldest Classic, the St Leger at Doncaster on 16 September.
The son of Sea The Stars provided King Charles III with a poignant and important victory at the first Royal Ascot meeting since the passing of Queen Elizabeth II in September. Ridden by Tom Marquand, Desert Hero came out on top in a thrilling battle with Melbourne Cup entry Valiant King in the King George V Stakes over 2400m.
John Warren, racing advisor to Their Majesties said: "The target is the St Leger and obviously, the way the horse is bred – he's by Sea The Stars out of a full sister to Dartmouth, who was a very good mile and a half horse – we would be hopeful that he will see out the trip, but he's never run beyond a mile and half at the moment.
"So, the St Leger will give us an indicator on whether the horse looks as if he will stay and after the Leger, if it looks like he will stay, it's very much all roads to Flemington".
Desert Hero is a prime example of the exquisite breeding programme founded and nurtured by the late Queen Elizabeth. By Sea The Stars, the colt is out of an unraced half-sister to Dartmouth, who won the Group 2 Hardwicke Stakes at Royal Ascot and the Group 2 Yorkshire Cup.
The bloodstock operation is an aspect of ownership that the new King and Queen are keen to get involved in.
"The King and Queen have both taken a keen interest in the bloodstock and they've very much enjoyed recently seeing their yearlings and their foals," Warren said.
"They've done a number of trips out where they've looked at the young stock coming along and taking on board all the new names that have been thrown at them, learning all about the stock which is tremendous.
"They're very much following it and this season they've copied what the late Queen did in watching the iPad for the foals being born in the evenings. They're very engaged."