Britain's Duchess of Cornwall and the Duchess of Cambridge "get on fine".
Britain's Duchess of Cambridge
The Duchess' son, Tom Parker-Bowles, has insisted there is no truth to the rumours that the pair can't see eye-to-eye.
He told the Daily Mail Australia: "They get on fine. I don't think there's any truth to [the rumours of tension].
"Well, I can't guarantee for sure, but I think that's all bulls**t."
It has previously been claimed that there was tension between the pair after Prince Charles became confused by his role in his two-year-old grandson Prince George's life.
Referring to Kate's mother, Carole Middleton, a source said the Prince had told friends at the time: "[The Middletons] never let me see my grandson. Carole has rather taken over, dictating when George naps, when and what he eats. All in all, behaving like she's Queen Carole."
And the 33-year-old royal - who also has two-month-old daughter Princess Charlotte with Prince William - has reportedly taken steps in the past to end their feud.
A source said previously: "Katherine knew that her parents weren't happy being seen as the more involved of the two sets of grandparents. Frankly, she felt it embarrassed them.
"William saw it, too. Everyone knew the Prince of Wales was quite hurt, not only on his own behalf but on Camilla's as well. He's as protective as ever of her role in the Royal Family."
Tagged in Duchess of Cornwall Duchess Of Cambridge