Meghan Markle and Prince Harry
The Duke and Duchess of Sussex are pictured attending a naming and unveiling ceremony for the new Royal Flying Doctor Service aircraft on Oct. 17, 2018 in Dubbo, Australia. Dominic Lipinski - Pool/Getty Images

Prince Harry used to be the most popular royal among the British clan, but his wife, Meghan Markle, has already taken his place.

Kate Williams, a royal historian, told Channel 5 News (via Express) that Prince Harry needs to get used to his wife getting more attention from royal fans.

“They are incredibly informal, we have seen the hugs, we have seen them barefoot on Bondi Beach. Sometimes you can talk about breaking protocol, there are also conversations about Meghan breaking protocol, I think there was a lengthy conversation about Meghan closing her car door about whether that was breaking protocol,” she said.

“Essentially, there is no rulebook saying you must do this you must not do this and I think the royal family is becoming more and more informal. Simply, the thing is that Harry has to recognize now that he is no longer number one, he is no longer number one, she is,” she added.

Prince Harry shouldn’t also follow in Prince Charles footsteps because the latter struggled with the shift in popularity from him to Princess Diana.

“I remember when Prince Charles and Princess Diana went on their first tour to Australia and he really struggled. You have two lines of people waiting for you and I am afraid to say that poor Prince Charles was very disappointed that the ling he got were very sad because they really wanted to see Princess Diana. But, I agree with you, that there is a huge amount of popularity, a huge amount of coverage, people love them, they’re on the front pages,” William said.

Prince Harry and Markle are also in Australia at the moment. Their most recent engagement in the continent took place the opening of this year’s Invictus Games in Sydney. The royal couple will also head to New Zealand, Fiji, and the Kingdom of Tonga in the coming days. Their royal tour will wrap up on Oct. 31.