Such moments include one shocking event where Diana surprised charity event attendees with a startling announcement. On the fateful night Princess Diana gave attendees at a charity lunch far more than they bargained for.
In fact the Princess, one of the most famous women in the world, shocked all those present.
Princess Diana attended the Headway event in 1993 after being in touch with the charity due to a personal incident, when Prince William fell and hit his head.
Evelyn Vincent, Founder of Headway, described the event in tonight’s Channel 5 documentary Princess Diana: In Her Own Words.
The charity worker said: “On that day, as far as I was concerned, it was a normal Headway lunch.
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At the event Diana told guests: “A year ago, I spoke of my desire to continue with my work unchanged. For the past year I have continued as before.
“However, life and circumstances alter and I hope you will forgive me if I use this opportunity to share with you my plans for the future which now indeed have changed.”
She went on: “At the end of this year, when I’ve completed my diary of official engagements, I will be reducing the extent of the public life I’ve led so far.
“Over the next few months I will be seeking a more suitable way of combining a meaningful public role, with hopefully, a more private life.”
It was a royal turning point that would later go on to be echoed in her son Prince Harry’s statement, along with his wife Meghan Markle, that they wished to live a private life outside of the Royal Family.
The same documentary revealed how Princess Diana used a trick in her speeches to gain public sympathy after her divorce from Prince Charles.
Once described as “shy Di” by the press, Diana found her voice in making speeches over time.
Speaking in 1993 on women’s mental health, the Princess of Wales made allusions to her own state of mind.
She said: “Isn’t it normal not to be able to cope all the time? Isn’t it normal for women as well as men to feel frustrated with life?
“Isn’t it normal to feel angry and want to change a situation that is hurting?”
Charles Crawford, a speech writer, analysed Diana’s speech.
He told viewers: “One of the things you do when writing a speech, one of the things to think about – and this technique goes back to the ancient Greeks – is you might post a question, but you might pose three questions and you might pose three questions that have the same word in. Repetition, questions, help give a speech structure.”
Mr Crawford went on: “But underlying the words there is the subtext, the not so subtle subtext, of me and my life.
“How do I become normal? With one or two things going on in the Royal Family, isn’t it normal for me to be angry?”