A number of gossip sites reported the Duchess, who announced her third pregnancy in September, was frustrated at her brother-in-law and his American actress girlfriend are “stealing her limelight”.
It was alleged that as the world eagerly waits for Harry and Meghan, 36, to announce their engagement, the Duchess was worried she won’t get all the attention.
One news site reported: “The Duchess knows that because of her years of experience in Hollywood, Meghan is more media savvy than Kate will ever be.
“She knows how to work a red carpet and she definitely knows how to pose for a camera in ways that Kate Middleton can only dream of doing herself.”
REVEALED: Kate Middleton announced her pregnancy in September
At the final day of the Cheltenham Festival in 2007
But claims of any feud or jealousy are said to be entirely false.
Rumour-debunking site Gossip Cop said a “royal insider” said the claims are “nonsense”.
It reported that in fact “the Duchess of Cambridge is rather fond of the Suits actress, and is pleased her brother-in-law is happy and in love.”
Prince Harry and Meghan Markle at the Invictus Games
Harry and Meghan engagement rumours have been swirling for months.
Just weeks ago, it was claimed she had quit her old as paralegal Rachel Zane on the hit TV show as she proposes to move to the UK.
The couple is tipped to announce their plan to marry before Christmas.