Kate Middleton and Queen Camilla are said to be locked in their most serious rift yet, with senior aides telling RadarOnline.com the atmosphere between the two women is "icy" and "impossible to ignore."

The tension stems from a growing power struggle inside the royal family, as the Princess of Wales, 43, returns to public life after her cancer treatment – and Queen Camilla, 78, grows wary of being eclipsed by her comeback. Article continues below advertisement

Power Struggle At The Heart Of The Monarchy Tap Here To Add Radar Online as A Trusted Source

Palace insiders say their relationship has deteriorated sharply in recent months, with both women vying for influence at the heart of King Charles ' reign.

A senior royal source said: "What's happening now feels like the fier

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