On the morning of June 2, 1953, the Queen was preparing for the most important day of her life - her coronation.
She had her loving husband Prince Philip at her side and the support of six maids of honour for the momentous historical event.
However, things took a quick turn as Lady Glenconner suffered a medical issue during the ceremony and needed support from staff.
The six women were understandably under a lot of pressure as millions of people watched the historic day all from across the globe, and they all had important tasks to carry out - including holding the new Monarch's robes.
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Organisers were concerned the nervous women might faint during the long event due to their tight dresses, the heat and the pressure.
So, in case of emergencies, they were each gifted a bottle of smelling salts which they could use if they were worried that they might faint.
However, according to one maid of honour Lady Glenconner, they weren't of much use for her once she became light-headed.
In fact, she nearly fainted during the ceremony, but thankfully a member of the congregation quickly came to her aid to rescue her.
On ITV 's The Queen: Inside the Crown documentary, she explained that the little file of salt was kept in her glove.
"Not that they did much good," she said.
"I started to sway, everything was black. I couldn't see, everything was black. It was awful."
She added: "I thought I can't let the Queen down."
"I could ruin the whole thing. All the cameras, millions of people all over the world watching."
She was incredibly thankful as she said that one of the Queen's ushers Black Rod noticed what was happening and rushed to her side to steady her.
She said: "He kept me just long enough for me to recover."
During the television documentary, Lady Glenconner recalled the moment when she saw Her Majesty arrive for the special ceremony.
She said: "I remember standing at the door and I suddenly heard this roar, and we know she was coming.
"The roar got louder, and louder and louder.
"The colour and music was like a Disney film, it was absolutely unreal."
She went on to describe the "love" that was felt on the traditional balcony moment at Buckingham Palace.
She stood aside the Queen, Prince Philip, and the other five maids of honours as they waved at well-wishers who came to witness the momentous moment for British history.
She said: "The noise, the love was a physical thing."
"It hit you, you could feel it. It was the most marvellous thing I've ever done in my life."
Have you met the Queen? We would love to hear your royal story! Email podsavethequeen@trinitymirror.com.
