The Queen is one of the most protected people in the country, with the 95-year-old year-old under round the clock security.
Her Majesty is known to follow a number of protocols to ensure safety, one of which includes having a direct phone line to just two people.
Despite having a very large and well-known family, only two people are allowed to have the number for the Queen's encrypted phone to allow minimal risk of hacking.
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Working to ensure not just anyone can reach the Monarch, My London reports that only one of her Majesty's children has the magic number, alongside one other person.
According to royal commentator Jonathan Sacerdoti, the two lucky people who can gain instant access to the Queen are her daughter Princess Anne and her racing manager, John Warren.
“But the two people she phones the most are said to be her daughter Princess Anne and her racing manager John Warren.”
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The Queen is known to be incredibly close with Mr Warren and has been seen chatting and laughing with him at events.
Warren is married to the Earl of Carnarvon's sister, Lady Carolyn Warren, and owns and runs the stud at Highclere Castle - the home that famously doubles as Downton Abbey.
Following the exciting news that the Queen had been inducted into the QIPCO British Champions Series Hall of Fame for her dedication to horse breeding, Warren praised the monarch.
He said: “I suspect that the Queen will have a lot of inner pride in being invited into the Hall of Fame.
The Queen's contribution to racing and breeding derives from a lifelong commitment. Her love of horses and their welfare comes with a deep understanding of what is required to breed, rear, train and ride a thoroughbred.
“Her Majesty's fascination is unwavering and her pleasure derives from all of her horses - always accepting the outcome of their ability so gracefully.”
