Speaking on Channel 5's latest royal documentary, Meghan at 40: The Climb To Power, which aired on Saturday July 24, royal author Tom Quinn explained how Meghan Markle had an "unholy scrap" with the royal family over what royal name her and Prince Harry could use for their commercial interests as they attempted to massively capitalise on the royal name in the USA and have tried to construct a brand after their departure from the royal family. The comments come as Meghan and Harry continue to forge lucrative media deals with Netflix, Apple and Spotify, have set up a media company called 'Archewell' and have recently announced plans to publish four new books in a deal thought to be worth an eye watering $40million.

       Royal expert explained how when the couple went to Canada “there seemed to be an unholy scrap” over what the Sussex’s wanted to be called.

       Mr Quinn said: “They wanted to be Sussex Royal! Again this is an American culture thing coming in via Meghan.

       “She, having crossed the Atlantic, began to think ‘we have got to be a brand’.

       "That terrible word that the Royal family would always think 'they're talking about brands, its awful!’"

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       He added how the pair “wanted to be Sussex Royal" in order to put the name on their product but "then they were told they could not be Sussex Royal and they couldn’t be HRH’s".

       The royal expert explained: "It was the Royal family again saying to them because clearly Meghan and Harry clearly hadn’t checked...

       "‘You can’t just carry on with the tittles you and when you were working members of the royal family!’"

       While royal historian and commentator, Ed Owens stressed: "Any form of commercial venture risked bringing the royal family into disrepute if it didn't fit with the monarchy's remit of public operations back in Britain."

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       Speaking to US Weekly at the start of July, Pauline Maclaran, a Professor of marketing & consumer research at Royal Holloway University explained how Prince Harry and Meghan Markle have established "a competitive brand" with "their version of royalty" that destroy's the brand of the royal family.

       This brand, she says, massively challenges the established royal family brand as the California-based pair continue to roll out products from books to podcasts.

       The consumer expert, who wrote Royal Fever: The British Monarchy in Consumer Culture, said: "They are taking that forward in the states and in a way challenging the royal family brand. They are showing they are au fait with contemporary times. They are showing up the royal family for their old fashioned ways, their much more traditional ways."

       But Professor Maclaran warned the pair of their actions in using royal family titles as a basis of their brand despite the criticism Harry and Meghan have levelled at the royals.

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       She explained: "But it is keeping that balance that they keep in touch with royalty because that of course is their kudos."

       Professor Maclaran went on to explain how the Sussex's have established their own brand with a heavy emphasis on "victimhood" which has a massive market in the USA.