It is unfortunate that the wives of Prince Harry and Prince William, Meghan Markle and Kate Middleton, have never met their mother, the late Princess Diana. If she were alive today, she would have gotten along really well with her daughters-in-law, according to royal biographer Andrew Morton.

The author of "Diana: Her True Story" told Daily Express that Duchess Meghan, Prince Harry's wife, would have been someone Princess Diana would look up to and aspire to be. At 38, Meghan Markle has had a good career and a network of influential friends in the U.S. before she left those behind to start her life with Prince Harry.  

According to Morton, Princess Diana was in her late 30s too when she was just starting to build her circle of influential people from the U.S. with the likes of billionaire philanthropist Teddy Forssmann, Colin Powell and Henry Kissinger. Donald Trump used to also send Princess Diana flowers and Morton said that she would have widened her reach and influence had she not died. 

Morton also thinks that Princess Diana would have been inspired by Duchess Meghan for her activism and advocacy, especially in women's causes. She would also be impressed by the former TV star's social media prowess and get along with Prince Harry's wife "like a house on fire" because there would be many cordial sparks between these two women. 

On the other hand, Morton said that Princess Diana would be friendly with Kate Middleton, Prince William's wife. They have nearly similar backgrounds as someone who grew up privileged since Princess Diana came from an aristocratic family and Duchess Kate had parents who are self-made millionaires.

Aside from being able to relate to Kate Middleton, Prince William's mom probably appreciate that her daughter-in-law went to university to earn a degree. Morton said that Princess Diana once aspired to have a degree in psychology. 

It's unclear why Princess Diana thought of taking up this course if she had the chance to be in college. Sources close to her, however, thinks it might have something to do with her mental health struggles and an eating disorder

Princess Diana spoke to Morton about this secret disease. She admitted to feeling empty after coming home from her official engagements and charity work. Her bulimia was a cry for help but instead, people around her regarded her struggles as instability.  

Unfortunately, Princess Diana's life was cut short before she could do even bigger things for herself. She died at the age of 37 in a car accident in Paris in 1997.