Omid Scobie's book is understood to include of volley of withering criticisms of the Royal Family. Here, Royal Correspondent NATASHA LIVINGSTONE sifts fact from fiction...

Claim: The Royal Household's diversity drive is merely a PR stunt.

Truth: Proof of Prince William's famous statement that 'we're very much not a racist family' was the appointment of the British-Nigerian cultural anthropologist Eva Omaghomi as Charles and Camilla's director of community engagement. The King's commitment to employing staff from a broad range of ethnic backgrounds dates back decades. A typical example is how, in 1998, he hired as his press secretary Colleen Harris, whose family came from Guyana. It was said she 'helped turn Charles into a human being'.

Claim: William 'distanced' himself from Harry after his wedding to Meghan. 

Truth: The Sussexes married in May 2018, after which rumours slowly spread that the brothers were growing apart. But William, Harry, Kate and Meghan made a number of smiling public appearances together after that. These included arriving to attend the 2018 Christmas morning church service at St Mary Magdalene Church in Sandringham together, right, maintaining their reputation as the tight-knit 'Fab Four'.

Claim: The monarchy is unpopular with the public and in decline. 

Truth: A poll published in the Daily Mail during the King's Coronation week in May found that more than half of Britons would vote for a constitutional monarchy. Sixty-five per cent of the 11,450 people surveyed agreed that the Royal Family was 'an asset for the UK'.

Claim: Charles might have preferred life as Camilla's tampon. 

Truth: This cruelly references a jokey, private phone conversation between Camilla and Charles in 1989 that was recorded without their knowledge and four years later made public by a redtop tabloid newspaper. Charles was making a juvenile quip about turning into a Tampax which was typical of his Goon Show-style humour. 

Claim: Charles never tried to mend fences with Harry after 'Megxit'. 

Truth: The King offered an olive branch by inviting Harry to his Coronation despite the publication of his son's book Spare, which included hurtful allegations about the Royal Family. But it was reported that Harry delayed replying because he was engaged in 'transatlantic pingpong' and was 'preoccupied' by where he would have to sit in Westminster Abbey.

Claim: The Palace lied by promising Camilla would never be Queen. 

Truth: Palace guidance on Camilla's title evolved over time. In 2005, courtiers said it was 'intended' that the former Mrs Parker Bowles would use the HRH Princess Consort title when Charles acceded to the throne. But in 2020, Queen Elizabeth II said it was her 'sincere wish' that Charles' wife would be known as Queen Consort. After the Coronation, she was referred to as just Queen Camilla.

Claim : Charles was a 'philandering husband who destroyed the life of Princess Diana'.

Truth: Charles admitted to adultery on camera in an interview with Jonathan Dimbleby in 1994, but only after his marriage with Diana 'became irretrievably broken down, us both having tried'. Then, the following year, Diana also admitted to infidelity in her notorious BBC Panorama interview with Martin Bashir and said she had fallen in love with cavalry officer James Hewitt. Royal author Robert Lacey wrote in his book Battle Of Brothers, published in 2020, that the young Prince William initially felt so betrayed by Diana's confession that he wept and refused for a time to speak to his mother.

Claim: The monarchy relies on jingoism and 'Trumpian' efforts to remain relevant.

Truth: More than 250,000 people happily queued for hours to see Elizabeth II lie in state in London in September 2022. Interest in the Royal Family has remained high since then with all the pomp of Charles's Coronation in May – left – watched by almost 20million British people when it was broadcast across 11 TV channels and services