Last week, Meghan Markle and Prince Harry allegedly sent a private message to Prince William and Kate Middleton congratulating them on their tenth wedding anniversary, but a royal author has dubbed the message a “setup.”

Several sources, including People and The Daily Beast, announced on Thursday that Prince Harry and Markle had “privately congratulated” the Cambridges on their wedding anniversary, which was also confirmed by a spokesperson for the Sussexes.

Lady Colin Campbell, author of “Meghan and Harry: The Real Story,” chuckled off the news in a new video on her official YouTube page, saying it was “hysterically funny” that their private well-wishes made it into the public domain.

In the video, the royal biographer said, “My information is that this is a total setup. That nobody is pleased or fooled by the supposed good wishes.”

Campbell also said that the Duke of Cambridge is indeed enraged by Markle’s numerous claims against the royal family. The author of “Diana in Private” also said that the future king is unhappy with Markle’s subtle assault on his wife during her and Prince Harry’s March interview with Oprah Winfrey.

“That in fact, Prince William cannot abide by his sister-in-law. My understanding is that he regards her as lower than the lowest form of pond life,” Campbell claimed. “And that he is absolutely spitting bricks. Not only about the treacherous way in which she invented all sorts of slurs, slanders and misrememberances to attack the Royal Family unfairly and untruthfully. But also to attack his wife.”

Harry and Meghan under fire for ‘manipulated’ leak

Recently, Prince Harry and Meghan Markle have been criticized for revealing their private anniversary conversation with Prince William and Kate Middleton.

After leaking their private communications with Kate Middleton and Prince William, Meghan Markle and Prince Harry have been labeled “hypocrites” by royal experts.

The Sussexes “privately congratulated” the Cambridges on their 10-year wedding anniversary, according to a spokesperson for the pair.

The Daily Beast released the leak despite the couple’s request for anonymity after they left the Royal Family, amid fears that persistent revelations regarding their relationship with the Firm would jeopardize their hoped-for reconciliation.

According to The Sun, royal analysts today slammed the confirmation as “hypocritical.”

“The Queen and Prince Charles made their messages of congratulations to William and Kate on their tenth anniversary in public so why didn’t Harry and Meghan?” said Phil Dampier, author of Royally Suited: Harry and Meghan In Their Own Words.

“Instead they relied on their spokespeople leaking out the fact they sent a message, making it look manipulated and contrived.”

Mr Dampier also said that the Cambridge-Sussex relationship has been “broken” over the past two years, with leaks rendering things impossible to restore.

“William’s big fear is that anything he says to his brother in an effort to heal their rift is immediately leaked to the media, and that makes it very difficult for them to have a proper conversation,” he said.

“To carry on a war with Harry’s blood family is unnecessary and counter-productive, and the sooner they realise that the better.

“They should get on with their lives, stop playing the victim and stop playing on their royal connections by leaking stories while pleading for privacy.

“People can see through it and anyone who advises them to carry on this way is giving them bad advice.”