Katie Nicholl has called for Netflix to use a disclaimer on The Crown, as the first part of the final series premieres today on the streaming platform.
The Crown, which has enticed audiences across six seasons, follows the royal family's history in a dramatisation of events in the British Monarchy.
Netflix has faced repeated criticism from royal experts in recent years since the series was released, over their inability to disclose that events have been dramatised for audience viewing.
Royal experts also claim that some events depicted in the show are "inaccurate" and not true to the royal history.
Season six of The Crown depicts Princess Diana and Dodi Al-Fayed's final weeks together
Netflix
The final season, starring Elizabeth Debicki as Princess Diana, will follow the late Princess in her final days with partner Dodi Al-Fayed, and their fatal trip to Paris.
The show will feature the horrific car crash which lead to the couple's death, and depict Debicki's Diana as a 'ghost'.
In trailers released by Netflix, the ghost of Diana is seen in conversation with Queen Elizabeth II and apologising to her for "turning everything upside down".
Reacting to the first preview of the season, royal author and editor of Vanity Fair Katie Nicholl revealed that Netflix have been "very strict" and made the media "sign confidentiality agreements" in regard to spoilers.
Nicholl said: "There is a tension that runs throughout because you know what's going to happen. And I think this is a story that we all know so well and I think in many ways this will probably be the most compelling of all series.
"The previous one's been very interesting, they are all beautifully produced. The casting is phenomenal. Elizabeth Debicki is knockout. It's unbelievable.
"It is a gripping story and it seems that none of us frankly can get enough of it. I think this will do do very, very well."
Nicholl revealed the series will also touch on the "war of the Wales'", and highlighted the series will question "fact versus fiction".
Katie Nicholl warned The Crown viewers that certain events are 'depicted as fact'
GB News
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Nicholl stated: "I think a lot of Americans and actually as well I think a lot of young people over here, if you're not of a certain generation where those front pages and that story is still very fresh in your mind, I think you will go into this watching it and believing it to be a very accurate depiction of what happens.
"These were real events based on real people. But for example, the engagement between Dodi and Diana in this six series is presented as fact. But we don't know if that actually happened. There was always a rumour.
"It was speculated upon, but we don't know as fact, in The Crown it's fact. So just watch it, enjoy it, know it's a drama."
Nicholl continued: "It still, by the way, doesn't contain a disclaimer at the start of the program.
"I think because it brings it so up to current day, this is going to be the final series. I suppose the Duchess of Sussex can breathe a sigh of relief in that respect.
"I think that it's not just at the Palace, I think politicians as well, a lot of people just feel that actually, it perhaps should have carried that disclaimer. Just to make it perfectly clear."
