Meghan Markle
Meghan Markle shares a number of similar traits with Princess Diana. Pictured: Markle meets members of the public after visiting Crown Bar, a former Victorian gin palace owned by the National Trust, on March 23, 2018 in Belfast, Nothern Ireland. Getty Images/Tim Rooke

Meghan Markle shares a number of common traits with Princess Diana, according to one author.

Andrew Morton, who has written biographies about the late Princess of Wales and the future royal, said Prince Harry's mother and fiancée have similar personalities.

"I think what Diana and Meghan have most in common is that they're both glamorous," Morton told Entertainment Tonight. "Feminine, but also feminists. They're independent...certainly for Diana, but also, humanitarian. Two women who want to give back."

In Morton's unauthorized biography of the "Suits" actress, he claimed that she's obsessed with the People's Princess. Markle was apparently affected by Princess Diana's death.

"When she was a teenager, like everybody else, she watched the funeral. She'd watched videos of Diana and Charles married in 1981," Morton said. "She was affected by the funeral, as many people were, and she and her friends together gathered toys and games and gave them to children who were less fortunate, kind of as a way signaling or recognizing Diana's passing."

A friend of the princess-in-waiting also told the royal biographer in his book "Meghan: A Hollywood Princess" that she wanted to be the second Princess Diana. However, in Morton's opinion, there are still many differences between the two women.

"Meghan's been called 'Diana 2.0.' I don't go with that for a minute," Morton said. "I think Meghan is 1.0. She's her own person. Diana was unique. Obviously, there are similarities, but there are also significant differences."

Last week, Morton appeared on ITV's "Lorraine," where he compared Princess Diana and Markle. He even found it "fascinating that Diana died 36 and Meghan came on to the scene at 36. In a way [Markle] is picking up the flag, she is a flag bearer for Diana."

However, many did not agree with the royal biographer. "How can Andrew Morton even try to compare Meghan to Princess Diana!!" Rachell Okin wrote on Twitter. "She wishes she was like her! Kate is following in Diana's footsteps far more. I don't see Harry & Meghan growing old together! What does Andrew actually know anyway!"

"How can you compare, one was the people's Princess and the other is an anti Trump, divorcee, wants to get on camera any chance she gets woman," James Smith commented.