Queen reportedly had to step in as William was furious over Charles' treatment of Kate's parents

In a new unauthorized Prince Charles' biography, Tom Bower claims to have inside information about the Royals and their disputes.

It is common for the mother's parents to be closer to the grandchildren than the father's parents, but this occurrence might be causing a rift in the Royal family of the Duke and Duchess of Cambridge.

According to All Cute All The Time, Prince William was furious when he discovered Prince Charles was planning for royal aides to snub Kate's mother, Carole Middleton.

It seems like Prince Charles felt "usurped" by the Middletons and their relationship with the grandchildren, George and Charlotte.

This was revealed in "Rebel Prince: The Power, Passion, and Defiance of Prince Charles," a book by author Tom Bower, in which he opens up on topics that have, before now, been kept under wraps.

Prince supposedly felt this way after the Duke and Duchess chose to spend Christmas Day with Kate's family, instead of with the Charles and Camilla.

The same outlet explained that Charles is known to be rather sensitive and was hurt by this choice, causing him to reportedly blame the Middletons for being left out.

In the book, Bower claimed that Charles went on a campaign to "snub" the Middletons, leaving them out of public events that they could have attended.

According to the book, several of the Queen’s courtiers 'decided to ignore Carole Middleton on social occasions' when they discovered Charles' insecurities.

William got really angry about this behavior and the Queen was forced to intervene, inviting to drive Carol around the Balmoral estate, also inviting a TV cameraman to film their outing.

Although this might be a relief on Carol's part, her move to placate the Middletons did nothing to repair the rift between Charles and Prince William.

Due to the fact that all parties will be eager to meet and spend time with their new child, the Royal Family will do whatever it takes to keep all the grandparents on good terms.