Chatting to CBS, Ms Brown said: "She will not step down because she does not believe this is about an office, she thinks its about an incarnation. She's not running for office. The Queen will die in her bed as the Queen."
Ms Brown, is author of 'The Diana Chronicles' continued: "She took an oath at Westminster Abbey, 'all the days of my life' she will reign.
"That's the woman that she is, the kind of person that she is."
The Queen celebrated her 93rd birthday on April 21. Meanwhile, Prince Charles is 70.
"Her Majesty will never resign," a source previously told the Daily Star online.
"She will be on the throne to her last breath."
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