His uncle Harry has promised the newest addition to the royal family that he will have "fun" -- and if a centuries old tradition is to be followed, it is an odds on certainty that horse racing will play a prominent role in young Prince George's future social life.
A love or horses and thoroughbred racing is ingrained in the House of the Windsor, and his great grandmother Queen Elizabeth II is a leading owner with a string of top horses.
"She adores breeding racehorses," her racing manager John Warren told CNN.
"The British bloodstock industry is very lucky to have a patron such as the queen."
Fittingly, the 87-year-old's most notable achievement is winning the Gold Cup at Royal Ascot with Estimate, a four-year-old filly guided by 10-time British champion trainer Michael Stoute.
Ridden by Ryan Moore, Estimate stormed to victory in the prestigious Group One race in June, the first time in its 207-year history that the British monarch had owned the winner.
It added to her earlier triumphs in the English Classics, the 1,000 and 2,000 Guineas, The Oaks and St. Leger.
Only the Epsom Derby eludes the queen, who saw her latest hope, Carlton House, come home third in 2011 after starting as favorite.
"She has inherited her father King George VI's love of the turf," said Nick Attenborough, spokesman for Great British Racing.
The Queen Mother had a long, successful affiliation with steeplechase racing, where horses run longer distances than flat horses and have to negotiate jumps or hurdles.
She died aged 2002 at the age of 101, but during her lifetime had 449 winners in her royal colors.
A top race at the Cheltenham Festival, the Queen Mother Champion Chase, is named in her honor.
But like her daughter, success in the most prestigious event -- the Grand National, jump racing's equivalent of the Derby -- remained a dream for the Queen Mother.
She was cruelly denied success in the 1956 edition when her horse Devon Loch, ridden by Dick Francis, led on the run-in at Aintree before falling to the turf unexpectedly.
It was said the horse became distracted by the ear-shattering noise from a loyal crowd, desperate for a royal winner, and missed a stride.
'She strives to have winners'
While racing is often called the "Sport of Kings," in Britain "Sport of Queens" is just as appropriate.
According to official records, Queen Victoria is said to have become so excited while watching a race at Ascot that she broke the window of the Royal Box in a rush to see the finish.
Her great great grand daughter would surely never be guilty of such unseemly behavior, but as Estimate stormed clear in the final furlong at Royal Ascot she could be seen with the broadest of smiles and maybe a hint of a tear.
"It's a special thrill to win this race for the Queen and it will have given her enormous pleasure," Stoute said at the time. "She really loves this game and it's a great recreation for her.
"The Queen has such a love for her breeding program and this will have been a bigger thrill to win with a filly, rather than a colt. She told me it was a very big thrill and thanked everybody involved."
Her grandson Peter Phillips put it more succinctly. "This is her passion and her life and she's here every year and she strives to have winners," he was quoted as saying.
That passion extends to a day-to-day involvement with her bloodstock and training operation.