QUEEN ELIZABETH II is known by millions of people across the world, due to her role as the Queen of the UK and the other Commonwealth realms. While she’s known as the Queen by many, the 92-year-old has a very unusual nickname when it comes to her great-grandchildren, which include Prince George, Princess Charlotte, and Prince Louis.

The longest-lived and longest-reigning British monarch, Queen Elizabeth II has had the chance to meet the children of her own grand-children. And, having had four children of her own with Prince Philip, the Duke of Edinburgh, 97, the Royal Family has welcomed plenty of youngsters over the years. The 92-year-old and her spouse are now grandparents of eight, and great-grandparents to seven youngsters. The Queen’s grandchildren include Prince William, Prince Harry, Peter Phillips, and Zara Tindall.Princess Beatrice, Princess Eugenice, Lady Louise Windsor, and James, Viscount Severn also share the head of the monarchy as their grandmother.

And, these royals have grown up addressing the Queen with a rather less formal title.

When they’re in a private location, Queen Elizabeth II is called Granny by royal grandchildren.

However, it seems that a young Prince William struggled with the word during his younger days.

Writing for the Daily Mail in 2015, Richard Kay claimed that the Duke of Cambridge, now 36, had – as a child – once fallen over at Buckingham Palace.

Calling for help, it’s claimed the young prince had begun to bawl “Gary, Gary,” at which point, the Queen clarified that Prince William had been yet to grasp how to say “Granny”.

But, it seems that the Duke soon mastered the word, and as he’s grown older, he has publically referred to his Granny a number of times in the past.

So, how do descendants of the Queen’s grandchildren address her?

This includes Prince George, five, Princess Charlotte, three, and Prince Louis, nine months – as well as Savannah Phillips, eight, Isla Phillips, six, Mia Tindall, five, and Lena Tindall, seven months.

And, it seems that Prince George may have chosen a seriously sweet yet unexpected name for the sovereign – with Princess Charlotte likely to have followed suit.

In the ITV documentary Our Queen at Ninety, which aired back in 2016, Kate said: “He calls her Gan-Gan.”

Queen Elizabeth II: The Queen is a Granny to eight, and has seven great grandchildren (Image: GETTY)

The Duchess of Cambridge went on to reveal the touching action the royal does when the little ones come to visit.

“She always leaves a little gift or something in their room when we go and stay,” she said. “And that just shows her love for the family.”

But, according to PopSugar, the young Prince may not have been the first to have used the adorable title.

In fact, American biographer Kitty Kelley has claimed that Prince Charles, Prince William, and Prince Harry all addressed their respective great-grandmothers with the name “Gan Gan”.