Despite this, little is known about the relationship of the Princess Royal and her aunt.
Commenting on some of their public outings, body language expert Judi James claimed they may have had some obvious differences.
During one outing, Judi claimed Princess Anne appeared more “relaxed” while Princess Margaret displayed more obvious regal body language.
“In the carriage together there are no signs of easy-going rapport between the two women,” she told Express.co.uk.
DON’T MISS
“Anne’s curled fingers and smile form a more relaxed-looking greeting of the crowd but Margaret’s upright ‘pole’ wave smacks of a more remote and old-fashioned form of royalty.”
Princess Anne has taken on various duties during her time working in the Royal Family.
In fact, the Queen’s daughter is often considered one of the hardest working royals.
While Princess Anne started to develop her style as a working royal, Judi claimed her differences with Princess Margaret became more apparent.
When they were seen together, Judi claimed they showed few signs of having a close relationship.
However, this may have simply been down to them having different interests and personalities.
She added: “For Princess Anne though, this relationship looks more about the differences in both behaviour and outlook.
“It is hard to the point of impossible to remember any moments when the two women showed any genuine bonding signals, but was this apparent frost the result of a clash between two royal divas or just a mis-match of personalities?”
Never miss a royal update again by signing up to the Daily Express Royal Family newsletter
The royal line of succession – who outranks who?
The line of succession to the British throne dictates the order in which each member of the Royal Family would ascend to the throne.
It is also seen as a ranking of importance with the head of the line, the Queen, taking the place of ruler.
Older children come before younger children. Traditionally boys came before girls, but this law was changed on 26 March 2015 before the birth of Prince William’s first child.
Incredibly, Catholics are still excluded from the line of succession, as are children born outside of wedlock.
The royals, who usually stick to a strict protocol when appearing in public, often arrive at events in ascending order of importance, with the most important royal arriving last.
Prince Charles, 72, is currently first-in-line to the British throne, followed by Prince William, 38, his oldest son.
Then comes Prince William’s children, George, seven, Charlotte, five, and Louis, two, and they are followed by Prince Harry, 36. Prince Harry is succeeded by his son Archie Harrison, born in May 2019.