When it comes to families, they often have sweet and sometimes amusing nicknames for their various members.
And it seems the Royal Family is no exception to this.
We recently learned how Prince William called The Queen ‘Gary’ when he was younger as he was unable to pronounce ‘Granny’.
Meanwhile, Prince Phillip is said to call Her Majesty pet names such as ‘Cabbage’ and ‘Sausage’.
Similarly Prince Charles dubbed Meghan Markle ‘Tungsten’, because, just like the metal, he thought she was “tough and unbending”.
And when it comes to Kate Middleton, it seems she also has a selection of weird and wonderful nicknames – although one in particular is much closer to her full name.
According to OK! Magazine, the Duke of Sussex doesn’t call the Duchess of Cambridge ‘Kate’, but instead refers to his sister-in-law as Cath.
The duchess, 39, has been known to the world as Kate for years, but it turns out she actually only started using the nickname ‘Kate’ while at university, previously preferring to go by her full name, Catherine.
Kate has previously admitted that she doesn’t mind which name people choose to call her.
During an interview with BBC Radio 1 presenter Scott Mills she said: “I will answer to most things.”
As well as Catherine, Kate and Cath, the duchess is also frequently called ‘babe’ and ‘darling’ by her husband, ‘mummy’ by her children and while at school she was known as ‘Squeak’.
The latter was derived from the name of a guinea pig.
Kate and her younger sister Pippa both had pet guinea pigs, named Pip and Squeak, which they later took nicknames from, with Pippa becoming known as Pip and Kate left with the other moniker.
If that weren’t enough, her friends at Marlborough College are also said to have called her the ‘Princess-in-waiting’ for a while.