King Charles makes powerful decision to protect Kate Middleton

King Charles is said to be fiercely protective to Kate Middleton, warning other royals against uttering negative word about his beloved daughter-in-law during her ongoing cancer treatment.

Author of "The King" Christopher Andersen claimed the 75-year-old monarch has been devoted to providing support for the future Queen behind palace doors.

Andersen, in conversation with Fox News, explained: "In the past, Charles has remained silent about this and allowed the sniping from the sidelines to continue. But no more. Now the king brooks no criticism of Kate, period."

"Other royal family members and courtiers alike know that they risk being read the Riot Act by the king if they dare utter a negative syllable about Kate," according to the author.

He went on to claim that the King won't show mercy to those who would cause tension to Kate, saying: "Charles has also made it clear that everyone should stand down in terms of when and how she returns to a full public schedule."

Andersen even revealed that Charles was privately impacted by Middleton’s illness.

"Charles was moved to tears by Kate's stunning video announcement that she has cancer," according to Andersen.

"The king sees her as, in a word, brave. She is not only the wife of a future king but the mother of a future monarch. Kate has also shown herself to be unswervingly loyal to the royal family."

The King recently bestowed on Kate the highest accolade he could, making her the first royal ever appointed to the Order of the Companions of Honour to make her happy.

There are also speculations that Kate avoided meeting with Harry during the Duke's UK trip to keep Kate tension free as it could add to her worries 

Kinsey Schofield, host of the "To Di For Daily" podcast, also claimed: "Catherine, the Princess of Wales, is what he considers the daughter he never had."

Several royal experts also claimed that Kate is quietly working behind the scenes with King Charles' support.

In her emotional video announcement, Kate said: "My work has always brought me a deep sense of joy, and I look forward to being back when I am able. But for now, I must focus on making a full recovery."

The Princess of Wales assured the public that "I am well and getting stronger every day by focusing on the things that will help me heal in my mind, body and spirit."