An unearthed book has revealed that Prince Harry was warned that Meghan Markle wouldn't be the right 'fit' for the Royal Family.

Princess Diana's brother Earl Spencer was said to have made his true concerns clear about his nephew's now-wife, whilst they were dating as he urged him to slow down the courtship. According to royal author Tom Bower, the Spencer family were shocked when they met Meghan for the first time.

The author, who wrote Revenge: Meghan, Harry, and the War Between the Windsors, claimed that Harry had likened the former Suits star to his late mother. However, the comparison is said to have not gone down well with the family, and Earl was reportedly "disappointed".

Earl Spencer wasn't sure about Meghan when she first began dating Harry (
Image:
Getty Images for Invictus Games)

Speaking about the negative meeting, Bower said: "Harry assumed that Diana's family and friends would see a similarity between Diana and his fiancée. He was disappointed. No one agreed that his vulnerable mother had anything in common with his girlfriend. More discomforting for him, they thought Meghan would not fit in with the Royal Family."

The Duke of Sussex previously reflected on his first date with Meghan at a small restaurant and said: “There was one photo. We just wanted to capture the feeling of just sitting in that little restaurant and going ‘Oh my gosh. We were going to give it a go’. That was when it just hit me. I was like, OK, this girl, this woman, is amazing, is everything that I’ve been looking for. And she’s so comfortable and so relaxed in my company.”

The pair got married in 2018 (
Image:
Getty Images)

Harry and Meghan then tied the knot at St George’s Chapel at Windsor Castle in 2018. According to Bower, Earl tried to intervene in their relationship and was initially worried for his nephew, reports Sky News AU. "Their unease was voiced by Charles Spencer, Diana's brother,” Bower added. "At William's request, Spencer weighed in. Three times married, Spencer cautioned his nephew to reconsider his haste towards marriage. His advice provoked a bitter reaction.”

Earl recently supported Harry at the Invictus Games anniversary service, but Meghan was not seen at the event. The Invictus Games, which hosts sporting events for wounded, sick or injured veterans or serving military, celebrated its 10th anniversary in May. Harry said at a celebratory event in London: “Sometimes you… look back and go ‘Look at what we’ve done’. But also given the state of the world, there is so much more to do and I think a lot of uncertainty – but what we’ve created is a global community.”