A royal expert has claimed that Prince Harry’s marriage to Meghan Markle has been a disaster for the Duke.

However, the expert says it has been a ‘huge success’ for Meghan.

According to the GB News, royal expert Rafe Heydel-Mankoo told The People's Channel that the balance of success in Meghan and Harry’s marriage is not quite at an equilibrium.

He claimed, "One party of the marriage has got a lot more out of it than the other one has".

The royal expert continued, "The marriage has been a huge success for Meghan in terms of her profile, in terms of her business career, in terms of her wealth and her status.”

"But I think for Harry, one must objectively say the marriage has been a disaster in terms of his standing, his approval ratings, his connection to the monarchy, his connection to the British people."

Rafe suggested Harry has "essentially chosen a life in America" that has left him unable to "perform any meaningful role".

"As I've often said, he knows really how to be a prince or a polo player or a soldier - none of which are of much use in California."

The royal expert’s remarks came as Meghan and Harry are celebrating their 8th wedding anniversary today, Tuesday, May 19.