Prince Charles and Princess Diana
Prince Charles was set up by his uncle Lord Mountbatten to a brunette beauty who rejected the future king. Pictured: Prince Charles and Princess Diana at Westminster Abbey, London, for a centenary service for the Royal College Of Music on Feb. 28, 1982. Getty Images/Fox Photos

Prince Charles was set up by his uncle with a brunette beauty who rejected him.

According to Netflix's documentary "The Royal House of Windsor," Lord Mountbatten desperately tried to set up Prince Charles with his granddaughter, Amanda Knatchbull. He was convinced that the future king and Knatchbull would make a great pair and that she would be the perfect queen. Prince Charles and Knatchbull's intimate photos taken in the Caribbean in 1977 showed that they had a great time together.

Lord Mountbatten was apparently secretly lining her up to be the next queen. In 1979, he proposed to her, but she reportedly said no. It was a dark period for the future king because his uncle was killed by the IRA just weeks later.

"He was manoeuvring the prince away from Camilla saying if you carry on with her you will end up like David (Edward VIII who was forced to abdicate the throne over his relationship with American divorcee Wallis Simpson," Christopher Wilson said (as quoted by Express). "People will hate you and your reputation will just disappear."

After Knatchbull's rejection, Prince Charles courted Princess Diana, whom he eventually married in 1981.

According to royal experts, Prince Charles dated 20 women in the 10 years following his split from Camilla Parker Bowles. He was very in love with her, but the royals didn't approve her because she's an "experienced" woman.

"It was absolutely vital to have on the throne somebody who was a virgin," Dr. Piers Brendan said clarifying Camilla's "experience". "A future Queen must have no past."

However, the heir never really got over Camilla. In fact, Princess Diana and another ex lived in her shadow.

Lady Jane Wellesley was among the women Prince Charles dated before he married Princess Diana. She was deemed as the prime candidate to marry the future king but she backed out when she realized what her position was to Prince Charle's life.

"Pretty soon, they came to the realisation of what it was like to live with a man who was in love with somebody else," Wilson said. "And Lady Jane Wellesley was an early example of that, and everybody looked to her as the new Princess of Wales but she saw very early on the shadow of Camilla."