Speaking to the Daily Telegraph royal author Katie Nicholl said William has “really struggled” over his relationship with Harry.
Ms Nicholl wrote “The Making of a Royal Romance” which tracked the Cambridges relationship in detail.
Referring to William she said: “He’s had a really hard time with his brother, he’s really struggled with it and she’s been a rock.
“When he was ill with Covid, she was the one nursing him and pulling it together and putting on a united front.
“He’s really struggled with it and she’s been a rock”
“She’s really shown the mettle – and he loves that about her”
“She’s really shown the mettle – and he loves that about her – and as such, he’s let her take the lead.”
Harry and Meghan departed as working royals in March 2020 and moved to California, Meghan’s home state.
Last month the couple gave an explosive interview to US talkshow legend Oprah Winfrey.
Meghan revealed she’d experienced loneliness and suicidal thoughts since marrying into the Royal Family in 2018.
The racism claim caused a global sensation with William insisting the Royal Family is “very much not racist” whilst visiting a London school.
Buckingham Palace released a statement on behalf of the Queen expressing sadness at Meghan’s difficulties, but noting “some recollections may differ” about the events described.
William and Harry were pictured chatting earlier this month after leaving Prince Philip’s funeral in Windsor.
William and Kate are celebrating their 10th wedding anniversary
Hundreds of millions watched the Cambridges’ wedding in Westminster Abbey
Kate and the two brothers were pictured together for the first time since Harry’s royal exit.
William and Kate’s 10th wedding anniversary was marked by a post on the official Royal Family Instagram page.
It said: “Wishing The Duke and Duchess of Cambridge a very happy wedding anniversary.
“Today marks ten years since Their Royal Highnesses exchanged vows at Westminster Abbey.”
Due to coronavirus restrictions only 30 mourners attended Prince Philip’s funeral
The post was accompanied by five pictured of the Cambridges; two recent ones and three from their wedding.
It received more than 750,000 likes and sparked lushing praise with one commentator calling the couple “an inspiration to an entire generation of young people”.
William and Kate posted a message of thanks and 40-second family video on Twitter.
William and Kate pictured with their three children
They said: “Thank you to everyone for the kind messages on our wedding anniversary.
“We are enormously grateful for the 10 years of support we have received in our lives as a family.”
The video showed the couple in a number of rural locations with their three children; Prince George, Princess Charlotte and Prince Louis.
Source: EXPRESS CO UK