Kate Middleton and her sister Pippa Middleton are feuding with each other after the latter's engagement with James Matthews, a new report claimed Wednesday. According to InTouch Weekly, the two sisters are at war with each other as Pippa is "fed up with Kate’s judgmental attitude."

"After years of private drama, clashing views about courting attention and fresh concerns about a wild brother-in-law-to-be, Pippa doesn’t want Kate in her wedding party,” a source told InTouch Weekly. “She’s fed up with Kate’s judgmental attitude, and doesn’t want her to be a bridesmaid unless she starts to chill out.”

According to the report, the two sisters have been clashing with each other over the last few years as Kate found it “unseemly” that her “royal access” was benefitting Pippa’s career. Kate is also reportedly concerned about Pippa's fiancé Matthews' family, including his brother who starred in a number of U.K. reality shows.

“During a heated discussion, Kate expressed how unhappy she is because of James ‘uncouth’ family connections. She believes they will try to cash in on the royal family,” the source told the magazine. “Kate goes out of her way to portray herself as the perfect princess and is petrified the fame-hungry Pippa is going to ruin everything.”

However, Gossip Cop debunked the report, saying that Kate and Pippa are not feuding.

The royal family has always been surrounded by rumors, with some reports also claiming that Kate was at war with Queen Elizabeth II and that the 90-year-old was heading for retirement. U.K.'s Globe magazine reported that Kate will be taking over the throne from the queen. However, Gossip Cop debunked the report.

Rumors about Kate and Prince William's marriage troubles have also made the rounds, while at the same time some claimed that the duchess will soon welcome her third child.