King Charles is doomed to remain pig-headed and stubborn to the end, as only one member of the family is capable of challenging him on any of his decisions, RadarOnline.com can reveal.

The claim forms the backdrop to renewed scrutiny of palace dynamics after former royal butler Paul Burrell , 67, said in his new memoir that Queen Camilla , 78, is the sole figure able to tell the cancer-stricken monarch , 77, the word "No." Article continues below advertisement

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Burrell, who began working as a Buckingham Palace footman at 18 before serving Princess Diana for a decade, sets out his view of the King's temperament

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