Queen Camilla is used to supporting her husband King Charles but behind the scenes, she has enjoyed the loyal support of her own “rock” during her hardest challenges in life.
The Queen’s little sister Annabel Elliot is a constant presence at her side offering advice and an ear to listen for the woman who is married to the King.
Their close sibling bond has had new light shed on it in behind-the-scenes footage from the King’s Coronation in the BBC1 documentary, Charles III: The Coronation Year.
The programme saw the King and Queen at the forefront but it also highlighted the relationship between the sisters as Ms Elliot was named as a “Queen’s Companion”.
In one moving clip, Ms Elliot, 74, became emotional as she watched her sister head to Westminster Abbey to be crowned Queen.
Speaking of the moment Ms Elliot says: “When I thought back to being two years old and watching the Queen’s Coronation on a tiny black and white television and there goes this golden coach with my sister in it.
“I can’t explain the feeling because it’s so surreal. This cannot be happening. It was quite a moment.”
And although the coronation looked plain sailing, Annabel still grappled with nerves for her big sister.
She said: “Going into the Abbey, I think I had that nervousness all the time, she’s quite a bit smaller than I am. I’m feeling: ‘Is she going to be all right?”
Growing up in Sussex, both sisters were described as “perfect” and did everything together. They went to the same schools, attended the same Pony Club events and were spotted at the same parties later on in life.
This didn’t differ when it came to marriage as they both tied the knot within a year of each other and welcomed children at the same time, which saw them create sweet memories on family holidays together.
Camilla first married Brigadier Andrew Parker Bowles but when their marriage broke down, Camilla and Ms Elliot took time away from the spotlight and travelled to Venice together and enjoyed activities including painting.
It was reported that before the future Queen married Mr Parker Bowles, they would spend Christmas apart, with Camilla residing at the home of Ms Elliot and her husband in Dorset.
In 2005 Camilla married the then Prince Charles, the pair having reportedly been in a relationship prior for some years.
