The kids have their own special nickname for Camilla (Image: PA)

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We know the members of the Royal Family by their names and their titles, but at home with their nearest and dearest they are known very differently.

Most of the royals have their own nicknames, with the Queen's immediate family having called her Lilibet for years instead of Elizabeth – and the Duke and Duchess of Sussex recently honouring the monarch by naming their daughter after her.

We also know that a young Prince William wasn't able to say 'grandma' when speaking to the Queen, so reportedly used to refer to her as 'Gary'.

And the new generation of young royals also have their own nicknames for their grandparents.

The kids call her 'GaGa'
(Image: AFP via Getty Images)

Prince George, Princess Charlotte and Prince Louis are said to know all about their 'Granny Diana' and they are thought to call Prince Charles their 'Grandpa Wales'.

According to the Daily Mail, Grandpa Wales follows the same format the Queen used for her grandad George V who she called Grandpa England.

But when it comes to Camilla, Duchess of Cornwall, the kids don't call her Grandma or Nanny – instead they have their own unique moniker for her.

During the 2016 Royal Variety Performance, the Duchess of Cornwall revealed to Lady Gaga that her grandkids call her "GaGa" too, reports The Sun.

How sweet!

Prince George is also said to have an adorable nickname for his great-grandmother, the Queen, and calls her "Gan-Gan".

Speaking back in 2016 after the birth of Princess Charlotte, Kate Middleton said: "It's very special having a new little girl…I feel very, very lucky that George has got a little sister.

"The Queen was really thrilled that it was a little girl, and I think as soon as we came back here to Kensington she was one of our first visitors here.

"George is only two-and-a-half and he calls her 'Gan-Gan.'

"She always leaves a little gift or something in their room when we go and stay and that just shows her love for her family."

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