Tensions are reported to have escalated between two prominent royal wives, Kate Middleton and Queen Camilla, culminating in a fiery argument following the passing of Queen Elizabeth II, as per an inside source.

Long-standing resentment, stoked by Camilla's alleged envy of Kate's favored status with Elizabeth, became more palpable after Elizabeth's demise in September. As the late queen had willed, Camilla ascended to the position of Queen Consort, marking a significant shift in the power dynamics within the royal family.

King Charles had been confident in Camilla's capacity to fulfill her new role, citing the unwavering dedication she had shown. He claimed that Camilla would bring "the steadfast devotion to duty on which I have come to rely" to her new responsibilities.

However, according to insiders, Camilla's newfound status led her to assert her authority with an intensity that sparked conflict. A source reported to Radar, "Camilla's lifelong dream of becoming queen had gone straight to her head. She started throwing her weight around, making it clear who was boss and demanding that everyone bow down to her."

Such behavior allegedly evoked strong negative reactions from the Duchess of Cambridge, Kate Middleton. An insider added, "Kate was frankly disgusted by Camilla's behavior."

Previous reports suggest that this isn't the first instance of friction between the two royal women. During the May 6 coronation of Charles and Camilla, Kate reportedly made a pointed statement by declining to curtsy as Camilla, 75, made her exit from Westminster Abbey.

An insider commented on the incident, "That obvious insult raised eyebrows big-time. Apparently, Kate was seething over commands Camilla made about coronation guests and decided to make her angry feelings very obvious."

The Duchess of Cambridge's displeasure was supposedly further fueled by Camilla's decision to invite 20 guests to the event, compared to Kate's allowance of four. A particularly contentious invite was extended to Rose Hanbury, a friend of Camilla's, who had previously been embroiled in rumors concerning an affair with Prince William.

A source pointed out, "William's affair was vehemently denied, but damage was done and his marriage to Kate suffered. By inviting Rose, Camilla was going for the jugular!"