MILLIONS watched around the globe as Charles and Diana tied the knot more than 40 years ago.
The young princess was just 20 when she walked down the aisle at St Paul’s Cathedral, with thousands of guests watching in the congregation.
Unfortunately, they turned out to be an unhappy match and the couple announced their separation in 1992, before getting officially divorced a few years later.
Despite their differences, Princess Diana continued to try and make their marriage work for the sake of her two children, Prince William and Prince Harry.
For example, in 1985, she tried to impress the future King by taking part in a Royal Ballet dance with Wayne Sleep.
In what was meant to be a surprise for her husband on his 37th birthday, the Princess famously appeared on stage at the Royal Opera House to perform a contemporary sequence to Billy Joel's Uptown Girl.
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It has been reported that despite Diana receiving a rapturous reception after the performance, Charles stayed in his seat.
It has never been divulged exactly what the his reaction was - but now, Diana's ballet teacher has revealed what really happened, .
In a new memoir, Anne Allan said the princess was energised at the reaction of the crowd and had a cheeky response.
She wrote: "After repeated curtain calls, an elated Diana left the stage and enthused, 'Beats the wedding!''
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The teacher went on to say that afterwards Diana made her way to Charles and as she stood beside her husband, the dancer could "sense she desperately wanted his approval".
However, Charles simply turned to her and said: "Well done, darling", before he turned to chat to someone else in what must have been a devastating reaction for his wife.
No footage exists of the performance, which took place during a VIP event.
Recalling the event years later, Diana's teacher - and friend - said: "She loved the freedom dancing gave her.
''A few days later, I got a letter. She wrote: 'Now I understand the buzz you get from performing'."
Who inherited Princess Diana's jewellery?
AFTER her death, Diana's sons Prince William and Prince Harry were left three-quarters of her £21 million estate — with the other quarter going to her 17 godchildren.
In a special "letter of wishes", Diana explained that she was leaving her jewellery to her sons' future wives.
The letter reads: "I would like you to allocate all my jewellery to the share to be held by my sons, so that their wives may, in due course, have it or use it.
"I leave the exact division of the jewellery to your discretion."
Some of Diana's most iconic gems were on loan from the royal collection, while others were not included in her estate.
When did Charles and Diana get divorced?
The couple famously split in 1992 and finalised their divorce in 1996.
After Harry's birth in September 1984, the couple were said to be sleeping in separate bedrooms, and by 1986 took separate holidays.
Charles is alleged to have told his friends “how awful incompatibility is”, and by mid-1986, he is said to have rekindled his affair with Camilla.
What was their relationship like?
The then-Prince Charles and Princess Diana were known to have had a very tumultuous relationship.
And a royal writer has claimed that Charles said his then-wife would “hit him over the head” when he said his prayers at night after they rowed.
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In Sally Bedell Smith’s book, "Prince Charles: The Passions and Paradoxes of an Improbable Life", she said that the couple were at odds long before they separated.
The biographer said there was “nothing cozy or mutually supportive about their relationship”.