The Duchess of Cambridge, Kate Middleton, could try for a fourth child because she “doesn’t like being at the forefront of royal duties”, a royal commentator has claimed.

The 37-year-old Duchess already shares three little ones with the Duke of Cambridge, Prince William, also 37, but is allegedly keen to add another tot to her brood.

Royal expert Phil Dampier has said that it wouldn’t be a surprise if Kate tried for a brother or sister for George, six, Charlotte, four and Louis, one, sometime soon.

He said, “Not only does she love family life in Norfolk, to be honest it gives her an excuse to not be at the forefront of royal duties for a bit longer, which I don’t think she enjoys.

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“I think Kate’s been interacting with the public and doing very well recently, but from what I’m told she’d rather be at home with the children.”

Speaking to Fabulous, Phil added he was initially surprised that the royal couple opted to have more than two children but speculated it was a decison made by Kate, who grew up as one of three siblings alongside Pippa, 35 and James, 32.

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Phil continued, “A fourth one could mean she’d have two girls and two boys.

“This would mean a sister for Charlotte but also a child who is a similar age to Louis, so that would be a nice dynamic.”

He explained that Catherine is also friendly with Princess Mary of Denmark, who has four children of her own – two boys and two girls between the ages of 13 and eight.

He said, “Not saying she models herself on her, but they get on well and she’s seen how she’s coped with it well.”