According to a royal filmmaker, Prince Harry should take a historical lesson from his great-great-uncle Edward VIII.

King Edward VIII, Queen Elizabeth II’s uncle, had only been king for a year before famously abdicating the throne in 1936 to marry American divorcee Wallis Simpson. Following the abdication, the couple was cut off from the monarchy. As a result, they struggled financially and were without a source of income, according to People magazine.

Without a source of income, Edward went on to write A King’s Story: The Memoirs of the Duke of Windsor, a ghost-written biography that featured chapters concerning the royal split and how he fell in love with Wallis in 1951.

True Royalty TV’s Nick Bullen made the allegation, and during an interview with Fox News, he said, “It’s fascinating when you draw the parallels between the two.”

Bullen claims that one resemblance between him and his fashionable uncle is Harry’s statement that he would write a “heartfelt and intimate” book.

“Both of them married divorced American women. We all know that, but it goes much deeper than that. Edward and his brother also experienced their own sibling rivalry can be compared to Harry’s strained relationship with his brother, Prince William.”

According to Bullen, one of the distinctions between Edward and his brother Bertie [King George VI] is that they “never really resolved their differences”

“And when Edward wrote his book, it was really the first time a senior member of the royal family had written such a book,” the True Royalty TV co-founder and editor-in-chief said. “And he was paid a fortune at the time. It may have even been the highest-paid book of its time. It had a tremendous impact. So what kind of impact will Harry now have?”

Edward and his wife Wallis also gave a broadcast interview, causing even another scandal, Like the Sussexes.

Bullen is an award-winning documentary filmmaker who has worked with Prince Charles for eight years and has produced shows on the royal family for over ten years.

He’s been creating films on the Windsors for a decade, and the channel is broadcasting a new series of movies about them this month.

True Royalty TV is launching three new films this month, including “The Royals Revealed: Harry and Edward, Princes in Exile,” which examines the royals’ commonalities, such as their military ambitions, marriages, sibling rivalry, and eventual retirement from royal responsibilities.

He believes the documentary’s “big lesson” is how Edward and his wife Wallis “faded into obscurity” becoming “bit players” rather than the A-Listers they once were.

“They were slightly awkward guests at dinner parties in New York. It raises the question, how long will Harry and [his wife] Meghan Markle’s value stay at such a high level? I think this documentary is a window to a story that has happened before and what could occur again.”