Princess Kate is set for a “huge move” that will demonstrate how at ease she feels within the Royal Family, according to royal biographer Angela Levin.

Speaking to Nana Akua on GB News, Levin said Kate travelling to Balmoral to be with the Firm this month is a significant decision.

The 42-year-old is thought to be preparing a trip to the Scottish Highlands where she will join her husband Prince William and their three children, Prince George, 11, Princess Charlotte, nine, and six-year-old Prince Louis, as well as other members of the family for their annual break.

“She is going to Scotland to be with the family”, she said.

“This is a huge move. Not only because she is obviously not well yet, but it shows she feels very comfortable with the Royal Family.

“She is very happy with the King and the Queen and she knows they will understand if she has to rest.

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“She can say what she likes and be warmed. I think it’s wonderful she can do that.

“The children will be delighted also.”

Kate’s public appearances this year have been few and far between having announced her cancer diagnosis in March.

The trip to the royal residence in Balmoral this summer will be the longest she has travelled since being diagnosed with cancer.

But it is unlikely she will be undertaking any more public appearances anytime soon.

The Paris Olympics was seen as somewhere she could potentially make a public showing, but as the games come to a close, it looks increasingly unlikely.

The future Queen attended the London 2012 Olympics alongside William and holds a strong interest in sports.

She is said to be awaiting medical advice before making any more public appearances.

A source told The Daily Beast regarding the Princess of Wales: “Kate has been exceptionally open and honest about her health.

"Making two appearances before the summer break, at Wimbledon and Trooping the Colour, was a clear signal that she is doing well.

"That is what we are hearing privately as well—it’s not over but there is lots of optimism, lots of positivity."

They continued: "It is obviously still an incredibly worrying time but all the signs are that her cancer treatment, which is ongoing, is progressing well."